AMSC N/A FSC 5935
MIL-PRF-39012/28H
w/AMENDMENT 1
1 March 2011
SUPERSEDING
MIL-PRF-39012/28H
4 May 2010
PERFORMANCE SPECIFICATION SHEET
CONNECTORS, RECEPTACLES, ELECTRICAL, COAXIAL, RADIO FREQUENCY,
(SERIES TNC, (CABLED), SOCKET CONTACT, JAM NUT MOUNTED, CLASS 2)
This specification is approv ed for use by all Departments
and Agencies of the Department of Defens e.
The requirements for acquiring the product described herein shall consist of
this specification sheet and MIL-PRF-39012.
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for information only.
3. For dimension A, see tables I and III.
4. Metric equivalents are in parentheses.
5. Wrench flats (if required for assembly) are to accommodate standard wrench opening in accorda nce with
FED-STD-H28, appendix 10.
6. All non-dimensioned pictorial representations are for reference purposes only.
7. Full threads to within .063 (1.60 mm) of shoulder.
8. Series TNC, socket contact interface in accordance with MIL-STD-348.
9. Dimension A defines the maximum length of the conn ector when assembled to the appropriate cable.
FIGURE 1. General configuration.
Inches mm Inches mm Inches mm
.022 0.56 .218 5.54 .510 12.95
.045 1.14 .221 5.61 .620 15.75
.104 2.64 .493 12.52 .630 16.00
.114 2.90 .495 12.57 .796 20.22
.160 4.06 .500 12.70 .812 20.62
.215 5.46 .505 12.83 .843 21.14
INCH-POUND
MIL-PRF-39012/28H
w/AMENDMENT 1
2
Inches mm
.002
.006
.010
.032
.036
.077
0.05
0.15
0.25
0.81
0.91
1.96
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for information only.
3. Chamfer is optional.
4. All undimensioned pictorial configurations are for reference purposes only.
5. Interface in accordance with MIL-STD-348 series TNC, socket contact.
FIGURE 2. Category D captivation detail.
MIL-PRF-39012/28H
w/AMENDMENT 1
3
TABLE I. Dash numbers, cross-reference, and dimensions.
Part or Identifying
Number (PIN) 1/
M39012/28-
Applicable cable 2/
M17/ Dimensions Inch (millimeters)
maximum #
Category A – Field serviceable (no sp ecial tools required) 3/
X101
Cable group VI 6/
60-RG142 4/
128-RG400 5/
A
1.250 (31.75)
X102
Cable group VII 6/
110-RG302 4/ 5/
X103
Cable group IV 6/
54-RG122 5/
X018
Cable group II 6/
113-RG316 4/ 5/
X225
Cable group X 6/
127-RG393 4/ 5/
0030 220-00001
0130 220-00002 14/
0031 221-00001
0131 221-00002 14/
0032 222-00001
0132 222-00002 14/
0033 223-00001
0133 223-00002 14/
0034 224-00001
0134 224-00002 14/
0035 225-00001
0135 225-00002 14/
See notes at end of table.
MIL-PRF-39012/28H
w/AMENDMENT 1
4
TABLE I. Dash numbers, cross-reference, and dimensions – Continued.
PIN 1/
M39012/28- Applicable cable 2/
M17/ Dimensions Inches (millimeters)
maximum #
Category C – field replaceable (MIL-DTL-22520 crimp tool)
See note next to applicable cable for crimp die 3/ 7/
X010
Cable group VIA 6/ 8/
111-RG303 4/ 5/
A
1.625 (41.28)
X011
Cable group VIB 6/ 8/
60-RG142 4/
128-RG400 5/
X012
Cable group VIIA 6/ 9/
110-RG302 4/ 5/
X013
Cable group IV 6/ 10/
54-RG122 5/
X014
Cable group VIIB 6/ 9/
90-RG71 5/
X022
Cable group IIA 6/ 11/
113-RG316 4/ 5/
X023
Cable group V 6/ 10/
95-RG180 5/
Category D – Field replaceable – Defined piece part 3/ 7/ 12/ 13/
X501
Cable group IV 6/
54-RG122 5/
A
1.234 (31.35)
See notes at end of table.
MIL-PRF-39012/28H
w/AMENDMENT 1
5
TABLE I. Dash numbers, cross-reference, and dimensions – Continued.
PIN 1/
M39012/28- Applicable cable 2/
M17/ Dimensions Inches (millimeters)
maximum #
Category D – Field replaceable – Defined piece part 3/ 7/ 12/ 13/
X502
Cable group V 6/
95-RG180 4/ 5/
A
1.234 (31.35)
X503
Cable group VIB 6/
60-RG142 4/
128-00001 5/
X504
Cable group VIA 6/
111-RG303 4/ 5/
1/ For cross-reference of PIN to superseded PIN or designation, see tabl e IV.
2/ The latest version of each cable shall be applicable.
3/ These connectors have captivated center contacts.
4/ Cable to be used for the +200°C tem perature cycling tests. This cable can be used for tests with the
approval of the Qualifying Activity.
5/ Cable to be used when performing test requiring cable except as in 5/ and 7/.
6/ Cables that are not 50-ohm cables in this cable group, when attached to the spe cified connectors,
VSWR, RF leakage and insertion loss are not applicable.
7/ These connectors are a ssemble d using the applicable crimp tool, to the specified cables stripped as
shown on figure 4.
8/ M22520/5-19 closure B or M22520/5-05 closure A. M22520/5 -1 1 closure A. M22520/5-57 closure A.
9/ M22520/5-19 closure A or M22520/5-07 closure A. M22520/5 -1 3 closure A. M22520/5-59 closure A.
10/ M22520/5-41 closure B or M22520/5-05 closure B. M22520/5-09 cl osure A.
11/ M22520/5-35 closure B or M22520/5-03 closure A.
12/ Complete connector assembly shall consist of a body, center contact, ferrule and assembly
instructions.
13/ Not to be used in Army equipment.
14/ Armored cable.
# Dimensions are in inches. Metric equiva lents are given for information only.
X Denotes connector body plating material option. The only plating options allowable are Silver or
Nickel over brass in accordance with MIL-PRF-39012. Only connectors of the same materials shall
be mated to avoid dissimilar metal problems. CAUTION: A NICKEL PLATED BODY IS NOT FOR
USE IN APPLICATIONS WHERE PASSIVE INTERMODULATION GENERATION (PIM) MAY BE A
CONCERN. Silver is the preferred plating option.
MIL-PRF-39012/28H
w/AMENDMENT 1
6
Dash
number
Ferrule
number
1/
A
± 0.003 B
± 0.003 Basic crimp
tool 2/
Crimp die or
positioner
M22520/5
X501
X502 28-50 0.212 0.175
M22520/5-01
05, 41
Closure B or
9 Closure A
X503 28-51 0.250 0.220 05, 11, 57
Closure A or
19 closure B
X504 28-52 0.245 0.206
1/ Contact numbers and ferrule numbers are for identification only.
2/ Class 2 tool may be used by OEM (see MIL-DTL-22520).
FIGURE 3. Contact and ferrule dimensions for catego ry D only.
MIL-PRF-39012/28H
w/AMENDMENT 1
7
Inches mm Inches mm Inches mm Inches mm
.001
,002
.003
.005
.015
.017
0.03
0.05
0.08
0.13
0.38
0.43
.033
.035
.040
.043
.067
.083
0.84
0.89
1.02
1.09
1.70
2.11
.145
.175
.183
.206
.210
.212
3.68
4.45
4.65
5.23
5.33
5.38
.220
.230
.235
.250
.478
.500
5.59
5.84
5.97
6.35
12.14
12.70
1/ Contact numbers and ferrule numbers are for identification only.
2/ Class 2 tool may be used by OEM (see MIL-DTL-22520).
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for informatio n onl y.
3. Contact material shall be copper beryllium. Connectors supplied with phosphor bronze
contacts are no longer acceptable for G overnme nt use.
4. Crimp tensile test shall be in accordance with SAE-AS39029.
5. Copyright notice: All information disclosed in these specification sheets which is or ma y be copyright
is reproduced herein with the express permission of the copyright o wner.
6. .003 inch maximum break.
7. Color bands shall be positioned so that no coloring material enters the inspection hole.
FIGURE 3. Contact and ferrule dimensions for category D only – Continued.
Dash No. Contact No.
1/
A
+0.001
-0.002
Basic crimp tool
2/ Crimp die or
positioner
Crimp
Tensile min.
(N)
Color band
Color
band
X501 28-12 0.033
M22520/1-01 M22520/1-12
10 lbs.
(44.48) Orn
Blue
X502 28-11 0.017 6 lbs.
(26.69) Blue
X503
X504 28-10 0.043 M22520/1-01 M22520/1-12 20 lbs.
(88.96) Red
MIL-PRF-39012/28H
w/AMENDMENT 1
8
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for Information only.
FIGURE 4. Cable stripping dimensions for field re placeable connectors.
Inches mm
.146
.166
.333
.353
.427
.447
.593
3.71
4.22
8.46
8.97
10.85
11.35
15.06
MIL-PRF-39012/28H
w/AMENDMENT 1
9
ENGINEERING DATA
Nominal impedance: 50 ohms.
Frequency range: 0 to 11 GHz.
Voltage rating:
500 volts rms, maximum working voltage at sea level .
125 volts rms, maximum at 70,000 feet (4.437 kPa).
Temperature rating: - 65°C to + 165°C.
REQUIREMENTS
Designs and configuratio ns: See figures 1, 2, 3, and 4.
Force to engage and disengage:
Longitudinal force: Not applicable.
Torque – 2 inch-pounds (.22 Nm), maximum.
Coupling proof torque: Not applicable.
Inspection conditions:
Coupling torque: 4 – 6 inch-pounds ((0. 51 Nm to 0.67 Nm).
Mating characteristics:
In accordance with MIL-STD-348 and figure 2 for dimensions.
Center contact (socket):
Oversize test pin: .057 inch (1.45 mm) diameter minimum (no nclosed entry contacts only).
Insertion depth: .125 inch (3.17 mm) minimum.
Number of insertions: 1.
Insertion force test: Steel test pin diameter .054 inch (1.37 mm) minimum.
Test pin finish: 16 microinches (4.437 kPa).
Insertion force: 2 pounds (8.90 N), maximum.
Withdrawal force test: Steel test pin diameter .052 inch (1.32 mm), maximum.
Withdrawal force: 2 ounces (.56 N), minimum.
MIL-PRF-39012/28H
w/AMENDMENT 1
10
Test pin finish: 16 microinches (0.406 µm).
Hermetic seal: Not applicable.
Leakage: Connector shall be mounted in mounting hole specified on figure 1 wi th mating end
capped. Test applicable to mounting seal only.
Air pressure: 30 Lbf/in2.
Duration: 30 secon ds, minimum.
Insulation resistance: Method 302 of MIL-STD-202, test condition B. 5,000 megohms minimum.
Center contact retention: 6 pounds (26. 69 N) minimu m axial force. Applicable to captivated-center-
contact connectors only.
Corrosion (salt spray): Method 101 of MIL-STD-2 02, test condition B.
Voltage standing wave ratio (VSWR): From 500 to 11 GHz, or approximately 80 percent of upper
cutoff frequency of the cable, whichever is lower; 1.30 maximum.
Swept frequency VSWR test setup:
Item 6 - VSWR shall be less than 1.02 + .003 F (F in GHz).
Item 16- VSWR shall be less than 1.02 + .003 F (F in GHz).
Second step of VSWR checkout pro ce dure - VSWR shall be less then 1.06 + .007 F (F in GHz).
Group B inspection - VSWR shall be less than 1.05 + .005 F (F in GHz).
Qualification and group C inspectio n - VSWR shall not exceed 1.10.
Connector durability: 500 cycles minimum at 12 cycles/minute maximum. The connector shall meet
the mating characteristics and force to engage end di sengage requirements.
Contact resistance: In milliohms maximum:
Initial
After environment
Center contact 1.5 2.0
Outer contact (silver) .2 Not applicable
Outer contact (nickel) .4 Not applicable
Braid to body .1 Not applicable
Dielectric withstanding voltage: Method 301 of MIL-STD-202, 1,500 volts rms minimum at sea level.
Vibration, high frequency: Method 204 of MIL-STD-202, test condition B.
Shock: Method 213 of MIL-STD-202, test condition I.
Thermal shock: Method 107 of MIL-STD-202, test condition B, except test high temperature shall be
+85°C. High temperature shall be +200°C for connectors using +200° cables (see tables I and III).
MIL-PRF-39012/28H
w/AMENDMENT 1
11
Moisture resistance: Method 106 of MIL-STD-202. No measurements at high humidity. Insulation
resistance shall be at least 200 megohms within 5 min utes after removal from humidity.
Corona Level:
Voltage - 375 volts rms, minimum.
Altitude - 70,000 feet (4.437 kPa ).
RF high potential withstanding voltage:
Voltage and frequ ency: 1,000 volts rms at a frequency from 5 to 7.5 MHz.
Leakag e current: Not applicable.
Cable retention force:
Noncrimp assemblies: 40 pounds (177.92 N), minimum.
Crimp assemblies:
10 pounds (44.48 N), minimum for cabl es .155- .189 inch (3.94 mm – 4.80 mm) OD.
20 pounds ((88.96 N), minimum for cables .190-.229 inch (4.83 mm – 5.82 mm) OD.
30 pounds (133.45 N), minimum for cables .230-.249 inch (5.84 mm – 6.32 mm) OD.
40 pounds (177.92 N), minimum for cabl es .250 inch (6.35 mm) OD. and larger.
Coupling mechanism retention force: Not applicable.
RF Leakage: -60 dB minimum, tested at a frequen cy between 2 and 3 GHz.
Insertion loss: .18 dB maximum tested at 9 GHz.
.06 F (GHz) dB max tested at 3 GHZ to 6 GHz.
PIN: M39012/28 - (dash number from table I or “B” number from table III).
Group qualification: See table II.
MIL-PRF-39012/28H
w/AMENDMENT 1
12
TABLE II. Group qualification. 1/ 3/
Group Submission and qualification of 2/
any of the following connectors Qualifies the following
connectors
I M39012/
27-X101
27-X103
27-X018
28-X101
28-X103
28-X018
29-X101
29-X103
29-X018
M39012/
27-X101
27-X002
27-X103
27-X018
28-X101
28-X102
28-X103
28-X117
28-X018
29-X101
29-X102
29-X103
29-X117
29-X018
II 27-X002
28-X102
29-X102
27-X002
28-X102
29-X102
III
27B0005
27B0006
27B0008
27B0015
27B0016
27B0020
28B0005
28B0006
28B0008
28B0015
28B0016
28B0020
29B0005
29B0006
29B0008
29B0015
29B0016
29B0020
27B0005
27B0006
27B0007
27B0008
27B0009
27B0015
27B0016
27B0019
27B0020
28B0005
28B0006
28B0007
28B0008
28B0009
28B0015
28B0016
28B0019
28B0020
See notes at end of table.
MIL-PRF-39012/28H
w/AMENDMENT 1
13
TABLE II. Group qualification – Continued. 1/ 3/
Group Submission and qualification of 2/
any of the following connectors Qualifies the following
connectors
III 29B0005
29B0006
29B0007
29B0008
29B0009
29B0015
29B0016
29B0019
29B0020
IV 27B0007
27B0009
27B0019
28B0007
28B0009
28B0019
29B0007
29B0009
29B0019
27B0007
27B0009
27B0019
28B0007
28B0009
28B0019
29B0007
29B0009
29B0019
V 27-X010
27-X011
27-X013
27-X022
27-X023
28-X010
28-X011
28-X013
28-X022
29-X023
29-X011
29-X013
29-X022
27-X010
27-X011
27-X012
27-X013
27-X014
27-X022
27-X023
28-X010
28-X011
28-X012
28-X013
28-X014
28-X022
28-X023
29-X010
29-X011
29-X012
29-X013
29-X014
29-X022
See notes at end of table.
MIL-PRF-39012/28H
w/AMENDMENT 1
14
TABLE II. Group qualification – Continued. 1/ 3/
Group Submission and qualification of 2/ any
of the following connectors Qualifies the following
connectors
VI 27-X012
27-X014
28-X012
28-X014
29-X012
29-X014
27-X012
27-X014
28-X012
28-X014
29-X012
29-X014
VII 28-X501
28-X503
28-X504
28-X501
28-X502
28-X503
28-X504
VIII 28-X502 28-X502
1/ If a connector manufacturer produces a connector which meets all the requirements for two or more
connecto r PINs (within the same ser ies), the manufacturer may receive qualification approval for two
or more connector PINs qualifying the one connecter. It is not necessary that such connectors be in
the same group. Each connector, however, must be marked with its own appropriate PIN. For group
qualification, the connectors must be of simila r design and be of the same materials and plating.
2/ For qualification retention, where more than one part is listed in a group in this column, data may be
supplied on any of those parts in order to retain qualification for those parts in the corresponding right
hand column. The part does not ne cessarily have to be the part initially qualified.
3/ Qualification by similarity may be given for the like styles of currently qualified TNC series connectors
with the approval of the qualifying and preparing activity. Similarity will include, cable
accommodation, materials and plating, assembly procedures and crimp tools/dies, as a minimum.
MIL-PRF-39012/28H
w/AMENDMENT 1
15
TABLE III. Category B – non-field replaceable (special tools may be required). 1/
PIN 2/ 3/
M39012/28B Applicable
Cable M17/ 4/ Dimensions Inches
(millimeters)
maximum #
0005 28-RG058 5/
A
1.625 (41.28)
0006 060-RG142 5/ 7/
128-RG400
0007 29-RG59 5/ 7/
030-RG062
97-RG210
0008 54-RG122 5/
0009 90-RG71 5/ 6/
0015 111-RG303 5/ 7/
0016 084-RG223 5/
0019 110-RG302 5/ 6/ 7/
0020 113-RG316 5/ 7/
119-RG174
1/ For maintenance replacements for category B, see table V.
2/ For cross-reference of PIN to superseded PIN or type designation, see table IV.
3/ Inactive for new design.
4/ The latest version of each cable shall, be applicable.
5/ Cable to be used when perfo rming tests requiring cable exce pt as in 6/ and 7/.
6/ These are not 50 ohm cables; therefore, when attached to the specified connectors, VSWR, RF
leakage, and insertion loss are not applicable.
7/ Cable to be used for the +200°C tem perature cycling tests. This cable can be used for tests with the
approval of the Qualifying Activity.
# Dimensions are in inches. Metric equivalents are given for information only.
Not for Air Force, Army, or Navy use. For OEM use only.
MIL-PRF-39012/28H
w/AMENDMENT 1
16
. TABLE IV. Supersession data. 1/ 2/
Preferred PIN
M39012/28 Superseded PINs
or superseded type designation
-0010 M23329/4-13, M23329/4-15
-0011 M23329/4-14, M23329/4-16
-0012 M23329/4-17, M39012/28-0021
-0023 M23329/4-18
-0101 M39012/28-0001, M39012/28-0004,
M39012/28-0104
-0102 M39012/28-0002,M39012/28-0017,
M39012/28-0117
-0103 M39012/28-0003
B0005 M39012/28-0005
B0006 M39012/28-0006
B0007 M39012/28-0007
B0008 M39012/28-0008
B0009 M39012/28-0009
B0015 M39012/28-0015
B0016 M39012/28-0016
B0017 M39012/28-0019
B0020 M39012/28-0020
1/ The superseded PIN or the type designation is for reference only. Where a superseded PI N or
type designation is not given, none was assigned or will be assigned. The PIN M39012/28-XXXX shall
be used in all cases for marking and identifying the connector.
2/ The basic type designation includes all letter versions of the specified number, e.g. UG-18/U includes
UG-18 A/U, UG-18B/U, etc.
TABLE V. Maintenance replacements for category B.
1/ Category B connectors are for original installation only. They will not be stocked or
acquired by the Government.
Category B
number
Inactive for new
design 1/
Category C
dash number Category A
dash number Category D
dash number
B0005 0010 0101 0504
B0006 0011 0101 0503
B0007 0012 0102 ---
B0008 0013 0103 0501
B0009 0014 0102 ---
B0015 0010 0101 ---
B0016 0011 0101 ---
B0019 0012 0102 ---
B0020 0022 0018 ---
MIL-PRF-39012/28H
w/AMENDMENT 1
17
Amendment notations. The margins of this specification are marked with vertical lines to indicate
modifications generated by this amen dment. This was done as a convenience only and the
Government assumes no liability whatsoever for any inaccu racies in these notations. Bidders and
contractors are cautioned to evaluate the requirements of this document based on the entire content
irrespective of the marginal notations.
Referenced documents. In addition to MIL-PRF-39 012, this document references the following:
FED-STD-H28
MIL-STD-202
MIL-STD-348
MIL-DTL-22520
SAE-AS39029
CONCLUDING MATERIAL
Custodians: Preparing activity:
Army - CR DLA - CC
Navy - EC
Air Force – 85
NASA – NA
DLA – CC (Project 5935-2011-045)
Review activities:
Army - AT, AV, EA, MI
Navy - AS, MC, OS, SH
Air Force - 19, 99
NOTE: The activities listed above were interested in this documen t as of the date of this document.
Since organizations and respo nsibilities can change, you should verify the currency of the information
above using the ASSIST Online database at https://assist.daps.dla.mil.
