MIL-C-83723 (SERIES 3)
J & K SERIES
MIL-C-83723 Hermetic connectors were developed for
application where a controlled atmosphere such as inert
gasses, partial vacuums, or constant environments are
needed. These receptacles are designed for use in aerospace,
electronic, electrical power, and control circuits.
The
“J”
&
“K”
Series receptacles are manufactured to
American Micro Products, Inc. (AMPI / ACE) standards and
meet the intermateability requirements of MIL-C-83723 Series
3 types B and T respectively. They are hermetically sealed
with a single compression glass seal around all contacts to
-7
prevent air leakage in excess of 1x10 cc/sec of helium at one
atmosphere.
The
“J”
series receptacles have a bayonet coupling
mechanism and the
“K”
series have the threaded coupling
type.
Standard hermetic receptacles are supplied with either solder
cup or eyelet type contact terminations. Contacts for other
applications such as thermocouple or flex prints are also
available. Standard receptacles are tin plated steel shells or
passivated stainless steel shells with gold plated nickel-iron
alloy contacts. Other materials and finishes can be supplied to
meet specific application requirements. Both series are
supplied with interfacial seals and O-rings.
AMPI
STANDARD MATERIALS AND FINISHES
FERROUS ALLOY SHELLS
Material: Cold rolled steel per ASTM 108
Finish:
100 microinches minimum fused tin per MIL-T-10727
over a suitable underplate
STAINLESS STEEL SHELLS
Material:
Finish:
Material:
Finish:
Corrosion resistant steel per QQ-S-764, type 303
or as specified.
Passivated.
Nickel-iron alloy per MIL-I-23011, class 2.
50 microinches minimum gold per MIL-G-45204
over a suitable underplate.
CONTACTS
BAYONET PINS
Material: Corrosion resistant steel per QQ-S-764, type 303.
INSERTS
Material:
Material:
Glass
Fluorosilicone rubber.
INTERFACIAL SEALS
BAYONET COUPLING
MILITARY
AMPI
DESCRIPTION
DESIGNATION
DESIGNATION
M83723/79H**N
30J-*-*PN-20
BOX MOUNT
M83723/79Y**N
31J-*-*PN-20
M83723/80H**N
20J-*-*PN-20
SOLDER
M83723/80Y**N
21J-*-*PN-20
MOUNT
M83723/93H**N
20J-*-*PN-40
M83723/93Y**N
21J-*-*PN-40
M83723/81H**N
50J-*-*PN-20
JAM NUT
M83723/81Y**N
51J-*-*PN-20
MOUNT
M83723/94H**N
50J-*-*PN-50
M83723/94Y**N
51J-*-*PN-50
MATING PLUG
M83723/75 - M83723/77
THREAD COUPLING
M83723/88H**N
30K-*-*PN-20
BOX MOUNT
M83723/88Y**N
31K-*-*PN-20
JAM NUT
M83723/89H**N
50K-*-*PN-20
MOUNT
M83723/89Y**N
51K-*-*PN-20
SOLDER
M83723/90H**N
20K-*-*PN-20
MOUNT
M83723/90Y**N
21K-*-*PN-20
M83723/86, M83723/91,
MATING PLUG
M83723/95, M83723/97
ELECTRICAL SERVICE DATA
The maximum current to be carried by the connector, based on
contact size, is the same as permitted by the wire bundle.
Maximum current ratings and corresponding voltage drops
under test condition, fully assembled, are shown below.
CONTACT
SIZE
20
16
12
TEST CURRENT
(AMPS)
5
10
17
POTENTIAL DROP
(MILLIVOLTS)
100
95
95
HIGH POTENTIAL TEST VOLTAGE
Unmated connectors tested per method 3001 of MIL-STD-
1344 shall have a maximum leakage of 2 milliamperes and
show no evidence of electrical breakdown of flashover.
SERVICE RATING
1
TEST VOLTAGE
(RMS 60 CPS)
1500
NOTES:
1. --
2--Circular flange solder mount
3--Square flange box mount
5--Jam nut mount
0-- Ferrous alloy
1 thru 7- various stainless steel #303
thru #347
J--MIL-C-83723, series III
type B intermateablility
K-- MIL-C-83723, series III
type T intermateablilty
P---Pin
Alternate keyway position
1--Eyelet
2--Solder cup
0--Nickel-iron alloy
M2-- Gold contacts with
shell passivated
M3-- Fused tin contacts over nickel
with gold on contacts
PART NUMBER EXPLANATION
2. --
3. --
4. --
5. --
6. --
7. --
8.
–
1.
AMPI
MIL-C-83723 (SERIES 3)
SOLDER MOUNT
20J RECEPTACLES (REF. M83723/80)
CONTACT SIZE
20
16
12
SHELL
SIZE
8
10
12
14
16
18
20
22
24
B
+.020
-.020
0.740
0.840
1.045
1.090
1.210
1.340
1.430
1.590
1.710
Y MAX
0.330
0.400
0.400
D
+.000
-.005
0.536
0.659
0.829
0.898
1.025
1.131
1.256
1.381
1.506
N
MAX
0.500
0.562
0.750
0.812
0.937
1.062
1.187
1.312
1.437
PART NUMBER
20J-8-(*)P▼-(**)
20J-10-(*)P▼-(**)
20J-12-(*)P▼-(**)
20J-14-(*)P▼-(**)
20J-16-(*)P▼-(**)
20J-18-(*)P▼-(**)
20J-20-(*)P▼-(**)
20J-22-(*)P▼-(**)
20J-24-(*)P▼-(**)
▼REPLACE
WITH ALTERNATE INSERT POSITION INDICATOR /(*) PIN ARRANGEMENT
NORMAL POSITION INDICATOR REQUIRED IS N
/(**) CONTACT STYLE AND MATERIAL
BOX MOUNT
30J RECEPTACLES (REF. M83723/79)
CONTACT SIZE
20
16
12
SHELL
SIZE
8
10
12
14
16
18
20
22
24
PART NUMBER
30J-8-(*)P▼-(**)
30J-10-(*)P▼-(**)
30J-12-(*)P▼-(**)
30J-14-(*)P▼-(**)
30J-16-(*)P▼-(**)
30J-18-(*)P▼-(**)
30J-20-(*)P▼-(**)
30J-22-(*)P▼-(**)
30J-24-(*)P▼-(**)
D
+.000
-.005
0.536
0.659
0.829
0.898
1.025
1.131
1.256
1.381
1.506
N
MAX
0.500
0.562
0.750
0.812
0.937
1.062
1.187
1.312
1.437
Z MAX
0.330
0.400
0.400
R
+.005
-.005
0.594
0.719
0.812
0.906
0.969
1.062
1.156
1.250
1.375
S
+.005
-.005
0.812
0.937
1.031
1.125
1.250
1.343
1.437
1.562
1.703
T
+.000
-.009
0.125
▼REPLACE
WITH ALTERNATE INSERT POSITION INDICATOR /(*) PIN ARRANGEMENT
NORMAL POSITION INDICATOR REQUIRED IS N
/(**) CONTACT STYLE AND MATERIAL
0.154
JAM NUT MOUNT
50J RECEPTACLES (REF. M83723/81)
CONTACT SIZE
20
16
12
SHELL
SIZE
8
10
12
14
16
18
20
22
24
D
+.000
-.005
0.536
0.659
0.829
0.898
1.025
1.131
1.256
1.381
1.506
F
+.003
-.003
0.593
0.718
0.905
0.968
1.093
1.217
1.342
1.467
1.592
Z MAX
0.165
0.235
0.235
H
+.017
-.017
0.812
0.937
1.123
1.188
1.312
1.438
1.562
1.688
1.812
M
+.005
-.005
0.979
1.104
1.291
1.391
1.516
1.641
1.766
1.954
2.079
V
THREAD
CLASS 2 A
0.6250-20 UN
0.7500-20 UNEF
0.9375-20 UNEF
1.0000-20 UNEF
1.1250-20 UN
1.2500-20 UN
1.3750-18 UNEF
1.5000-20 UN
1.6250-18 UNEF
W
+.020
-.020
PART NUMBER
50J-8-(*)P▼-(**)
50J-10-(*)P▼-(**)
50J-12-(*)P▼-(**)
50J-14-(*)P▼-(**)
50J-16-(*)P▼-(**)
50J-18-(*)P▼-(**)
50J-20-(*)P▼-(**)
50J-22-(*)P▼-(**)
50J-24-(*)P▼-(**)
0.117
0.148
▼REPLACE
WITH ALTERNATE INSERT POSITION INDICATOR /(*) PIN ARRANGEMENT
NORMAL POSITION INDICATOR REQUIRED IS N
/(**) CONTACT STYLE AND MATERIAL
3.
AMPI
MIL-C-83723 (SERIES 3)
SOLDER MOUNT
20K RECEPTACLES (REF. M83723/90)
CONTACT SIZE
20
16
12
SHELL
SIZE
8
10
12
14
16
18
20
22
24
A
THREAD
UNEF 2A
0.5625-24
0.6875-24
0.8750-20
0.9375-20
1.0625-18
1.1875-18
1.3125-15
1.4375-18
1.5625-18
Z +/- .030
0.164
0.194
0.194
B
+.010
-.010
0.713
0.840
1.045
1.090
1.210
1.340
1.475
1.590
1.725
N
+.000
-.006
0.500
0.562
0.750
0.812
0.937
1.062
1.187
1.312
1.437
PART NUMBER
20K-8-(*)P▼-(**)
20K10-(*)P▼-(**)
20K-12-(*)P▼-(**)
20K-14-(*)P▼-(**)
20K-16-(*)P▼-(**)
20K-18-(*)P▼-(**)
20K-20-(*)P▼-(**)
20K-22-(*)P▼-(**)
20K-24-(*)P▼-(**)
▼
REPLACE WITH ALTERNATE INSERT POSITION INDICATOR /(*) PIN ARRANGEMENT
NORMAL POSITION INDICATOR REQUIRED IS N
/(**) CONTACT STYLE AND MATERIAL
BOX MOUNT
30K RECEPTACLES (REF. M83723/88)
CONTACT SIZE
20
16
12
SHELL
SIZE
8
10
12
14
16
18
20
22
24
PART NUMBER
30K-8-(*)P▼-(**)
30K-10-(*)P▼-(**)
30K-12-(*)P▼-(**)
30K-14-(*)P▼-(**)
30K-16-(*)P▼-(**)
30K-18-(*)P▼-(**)
30K-20-(*)P▼-(**)
30K-22-(*)P▼-(**)
30K-24-(*)P▼-(**)
A
THREAD
UNEF 2A
0.5625-24
0.6875-24
0.8750-20
0.9375-20
1.0625-18
1.1875-18
1.3125-15
1.4375-18
1.5625-18
Z +/- .030
0.164
0.194
0.194
N
+.000
-.006
0.500
0.562
0.750
0.812
0.937
1.062
1.187
1.312
1.437
R
+.005
-0.005
0.594
0.719
0.812
0.906
0.969
1.062
1.156
1.250
1.375
S
+.005
-0.005
0.812
0.937
1.031
1.125
1.25
1.343
1.437
1.562
1.703
T
+.000
-.009
0.125
▼
REPLACE WITH ALTERNATE INSERT POSITION INDICATOR /(*) PIN ARRANGEMENT
NORMAL POSITION INDICATOR REQUIRED IS N
/(*) CONTACT STYLE AND MATERIAL
0.154
JAM NUT MOUNT
50K RECEPTACLES (REF. M83723/89)
CONTACT
SIZE
20
16
12
Z +/- .030
SHELL SIZE
8-20
22 & 24
0.150
0.139
0.180
0.169
0.180
0.169
F
+0.003
-0.003
0.593
0.718
0.905
0.968
1.093
1.217
1.342
1.467
1.592
H
+.017
-.017
0.812
0.937
1.125
1.187
1.312
1.437
1.562
1.687
1.812
L
MAX
REF
M
+.015
-.015
0.964
1.088
1.275
1.375
1.500
1.625
1.750
1.938
2.063
V
THREAD
CLASS 2 A
0.6250-20 UN
0.7500-20 UNEF
0.9375-20 UNEF
1.0000-20 UNEF
1.1250-18 UNEF
1.2500-18 UNEF
1.3750-18 UNEF
1.5000-18 UNEF
1.6250-18 UNEF
SHELL
SIZE
8
10
12
14
16
18
20
22
24
PART NUMBER
50K-8-(*)P▼-(**)
50K-10-(*)P▼-(**)
50K-12-(*)P▼-(**)
50K-14-(*)P▼-(**)
50K-16-(*)P▼-(**)
50K-18-(*)P▼-(**)
50K-20-(*)P▼-(**)
50K-22-(*)P▼-(**)
50K-24-(*)P▼-(**)
▼
REPLACE WITH ALTERNATE INSERT POSITION INDICATOR /(*) PIN ARRANGEMENT
NORMAL POSITION INDICATOR REQUIRED IS N
/(**) CONTACT STYLE AND MATERIAL
A
THREAD
UNEF 2A
0.5625-24
0.6875-24
0.8750-20
0.9375-20
1.0625-18
1.1875-18
1.3125-15
1.4375-18
1.5625-18
0.918
0.929
4.
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