MIL-PRF-39012/27H
w/AMENDMENT 2
21 November 2016
SUPERSEDING
MIL-PRF-39012/27H
w/AMENDMENT 1
1 March 2011
PERFORMANCE SPECIFICATION SHEET
CONNECTORS, PLUGS, ELECTRICAL, COAXIAL, RADIO FREQUENCY,
(SERIES TNC, (CABLED), SOCKET CONTACT, CLASS 2)
This specification is approved for use by all Departments
and Agencies of the Department of Defense.
The requirements for acquiring the product described herein shall consist of
this specification sheet and MIL-PRF-39012.
NOTES:
1. Dimensions are in inches . Metric equivalents are given for information on l y. Metric equivalents are
in parentheses.
2. For dimension A, see tables I and III.
3. Wrench flats (if required for assembly) are to accommodate standard wrench opening in
accordance with FED-STD-H28, appendix 10.
4. All undimensioned pictorial representations are for reference purposes only.
5. Dimension A defines the maximum length of the connector when assembled to the appropriate
cable.
6. Series TNC, socket contact interface in accordance with MIL-STD-348.
FIGURE 1. General configuration.
AMSC N/A FSC 5935
INCH-POUND
MIL-PRF-39012/27H
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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 . Metric equivalents are given for information only.
2. Chamfer is optional.
3. All non-dimensioned pictorial configurations are for reference purposes only.
FIGURE 2. Category D captivation detail.
MIL-PRF-39012/27H
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TABLE I. Das h numbers , cross-reference, and dimensions.
Part or Identifying
Number (PIN) 1/
M39012/27-
Applicable cable 2/
M17/ Dimensions Inch (millimeters)
max imum #
Categor y A – Field serviceable (no special 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 13/
0031
221-00001
0131
221-00002 13/
0032
222-00001
0132
222-00002 13/
0033
223-00001
0133
223-00002 13/
0034
224-00001
0134
224-00002 13/
0035
225-00001
0135
225-00002 13/
See notes at end of table.
MIL-PRF-39012/27H
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TABLE I. Das h numbers , cross-reference, and dimensions – Continued.
PIN 1/
M39012/27-
Dimensions
Inches (millimeters)
max imum #
Categor y 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
1.500 (38.10)
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/
Categor y D – Field replaceable – Defined piece part 3/ 7/ 12/
X501
Cable group IV 6/
54-RG122 5/
A
1.234 (31.35)
See notes at end of table.
MIL-PRF-39012/27H
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TABLE I. Das h numbers , cross-reference, and dimensions – Continued.
PIN 1/
M39012/27-
Dimensions
Inches (millimeters)
max imum #
Categor y D – Field replaceable – Defined piece part 3/ 7/ 12/
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 table 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 temperature 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 ar e not 50-ohm cables in this cable group, when attached to the specified connectors,
VSWR, RF, leakage and insertion loss are not applicable.
7/ These connectors are assembled 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. M22520/5-11 closure A. M22520/5-57 closure A.
9/ M22520/5-19 closure A or M22520/5-07 closure A. M22520/5-13 closure A. M22520/5-59 closure A.
10/ M22520/5-41 closure B or M22520/5-05 closure B. M22520/5-09 closure 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/ Armored cable.
# Dimensions are in inches. Metric equivalents 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 pr eferr ed platin g option.
MIL-PRF-39012/27H
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Dash
number
Ferrule
number
1/
A
± 0.003 B
± 0.003
Basic crimp
tool 2/
Crimp die or
positioner
M22520/5
X501
X502 27-50 0.212 0.175
M22520/5-01
05, 41
Closure B or
9 Closure A
X503
27-51
0.250
0.220
05, 11, 57
Closure A or
19 closure B
X504 27-52 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 category D only.
MIL-PRF-39012/27H
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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 . Metric equivalents are given for information only.
2. Contact mater ial sha ll be cop per bery llium. Connectors supplied with phosphor bronze
contacts are no longer acceptable for Government use.
3. Crimp tensile test shall be in accordance with SAE-AS39029.
4. Copyright notice: All information disclosed in these specification sheets which is or may be copyright
is reproduced herein with the express permission of the copyright owner.
5. .003 inch max imum brea k.
6. 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 27-12 0.033 M22520/1-01 M22520/1-12
10 lbs.
(44.48)
Orn
Green
X502 27-11 0.017
6 lbs.
(26.69)
Blue
X503
X504
27-10 0.043 M22520/1-01 M22520/1-12
20 lbs.
(88.96)
Red
MIL-PRF-39012/27H
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NOTES:
1. Dimensions are in inches. Metric equivalents are given for Information only.
FIGURE 4. Cable stripping dimensions for field replaceable 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-39012/27H
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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 configurations: See figures 1, 2, 3, and 4.
Force to engage and disengage:
Longitudinal force: Not app licable.
Torque – 2 inc h-pounds (.22 Nm), maximu m .
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 (nonclosed 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.
MIL-PRF-39012/27H
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Withdrawal force test: Steel test pin diameter .052 inch (1.32 mm), maximum.
Withdrawal force: 2 ounces (.56 N), minimum.
Test pin finish: 16 microinches (0.406 µm).
Hermetic seal: Not applicable.
Leakage (pressurized connectors): Not applicable.
Insulation resistance: MIL-STD-202-302, test condition B. 5,000 megohms minimum.
Center contact retention: 6 pounds (26.69 N) minimum axial for c e. Applicab le to capt ivat ed center
contact connectors only.
Corrosion (salt spray): MIL-STD-202-101, 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 - VSW R shall be less than 1.02 + . 00 3 F (F in GHz).
Item 16- VSWR shall be less than 1.015 + .003 F (F in GHz).
Second step of VSWR checkout procedure - 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 inspection - VSWR shall not exceed 1.10.
Connector durability: 500 cycles minimum at 12 cycles/minute maximum. The connector shall meet
mating characteristics and force to engage and disengage requirements.
Contact resistance: In milliohms maximum:
Initial After environment
Center contact 1.5 2.0
Outer contact (silver) .2 Not app lica ble
Outer contact (nickel) .4 Not applica ble
Braid to body .1 Not applica ble
Dielectric withs ta ndi ng volt age: MIL-STD-202-301, 1,500 volts rms minimum at sea level.
Vibration, high frequency: MIL-STD-202-204, test condition B.
Shock: MIL-STD-202-213, test condition I.
Thermal shock: MIL-STD-202-107, 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-39012/27H
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Moi sture resistance MIL-STD-202-106. No measurements at high humidity. Insulation
resistance shall be at least 200 megaohms within 5 minutes after removal from humidity.
Corona Leve l:
Voltage - 375 volts rms, minimum.
Altitude - 70,000 feet (4.437 kPa).
RF high potenti al withst anding volta ge:
Voltage and frequency: 1,000 volts rms at a frequency from 5 to 7.5 MHz.
Leakage current: Not applicable.
Cable retention force:
Non-crimp assemblies: 40 pounds (177.92 N), minimum.
Crimp assemblies:
10 pounds (44.48 N), minimum for cables .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 cables .250 inch (6.35 mm) OD. and larger.
Coupling mechanism retention force: Not applicable.
RF Leakage: -60 dB minimum, tested at a frequency 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: M39012/27 - (dash number from table I or “B” number from table III).
Group qualification: See table II.
MIL-PRF-39012/27H
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TABLE II. Group qualification. 1/
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-39012/27H
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TABLE II. Group qualification – Continued. 1/
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-X012
28-X022
29-X010
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
29-X010
29-X011
29-X012
29-X013
29-X014
29-X022
See notes at end of table.
MIL-PRF-39012/27H
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TABLE II. Group qualification – Continued. 1/
Group
Submission and qualification of any of
the following connectors 2/
Qualifies the following
connectors
VI
27-X012
27-X014
27-X023
28-X012
28-X014
29-X012
29-X014
27-X012
27-X014
27-X023
28-X012
28-X014
29-X012
29-X014
VII
27-X501
27-X503
27-X504
17-X501
17-X502
17-X503
17-X504
VIII
27-X502
17-X502
1/ If a connector manufacturer produces a connector which m eets all the requ irements for two or more
connector PINs (w ithin the sam e series), the m anufacturer m ay receive qua lification appr oval 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, m ust be marked with its own appropriate PIN. For group
qualification, the connectors must be of similar design and be of the same materials and plating.
2/ For qualification retention, where m ore than one part is listed in a group in this column, data may be
supplied on an y of those p arts in order to retain qual ification f or th ose parts in th e c orres ponding ri ght
hand column. The part does not necessarily have to be the part initially qualified.
MIL-PRF-39012/27H
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TABLE III. Ca teq ory B - nonfield replaceable (special tools may be required). 1/
PIN 2/ 3/
M39012/27B Applicable
Cable M17/ 4/ Dimensions
Inches
(millimeters)
max imum #
0005
28-RG058 5/
A
1.500 (38.10)
0006
84-RG223 5/
0007
111-RG303 5/
0008
60-RG142 5/ 6/
0009
29-RG59 5/ 6/
30-RG062 6/
97-RG210 6/
0015
54-RG122 5/
0016
84-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 performing tests requiring cable except 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 temperature 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-39012/27H
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TABLE IV. Supers es sion d ata. 1/ 2/
Preferred PIN
M39012/27
Superseded PINs
or superseded type designation
B0005
M39012/27-0005
B0006
M39012/27-0006
B0007
M39012/27-0007
B0008
M39012/27-0008
B0009
M39012/27-0009
B0015
M39012/27-0015
B0016
M39012/27-0016
B0019
M39012/27-0019
B0020
M39012/27-0020
-0010
M23329/4-07, M2332 9/4-09
-0011
M23329/4-08, M2332 9/4-10
-0012
M23329/4-11, M3901 2/27-0021
-0023
M23329/4-12
-0101
M39012/27-0001, M3 901 2/ 27-0104,
M39012/27-0004
-0102
M39012/27-0117, M3 901 2/ 27-0017
-0103
M39012/27-0003
1/ The superseded PIN or the type designation is for reference only. Where a superseded PIN or type
designation is not given, none was assigned or will be assigned. The PIN M39012/27-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 inc l udes
UG-18 A/U, UG-18 B/U, etc.
TABLE V. Maintenance replacements for category B.
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
0002
---
B0008
0013
0103
0501
B0009
0014
0002
---
B0015
0010
0104
---
B0016
0011
0101
---
B0019
0012
0102
---
B0020
0022
0018
---
1/ Category B connectors are for original installation only. They will not be stocked or
acquired by the Government.
MIL-PRF-39012/27H
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17
Amendment notations. The margins of this specification are marked with vertical lines to indicate
modifications generated by this amendment. This was done as a convenience only and the
Government assumes no liability whatsoever for any inaccuracies 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-39012, this document references the following:
FED-STD-H28
MIL-STD-202-101
MIL-STD-202-106
MIL-STD-202-107
MIL-STD-202-204
MIL-STD-202-213
MIL-STD-202-301
MIL-STD-202-302
MIL-STD-348
MIL-DTL-22520
SAE-AS39029
CONCLUDING MATERIAL
Custodians: P reparing activity:
Army - CR DLA - CC
Navy - EC
Air Force – 85 (Project 5935-2016-205)
NASA – NA
DLA – CC
Revie w ac t i vit ies :
Army - AT, AV, EA, MI
Navy - AS, MC, O S, SH
Air Force - 19, 99
NOTE: The activities listed above were interested in this document as of the date of this document.
Since organizations and responsibilities can change, you should verify the currency of the information
above using the ASSIST Online database at https://assist.dla.mil.