MIL-DTL-12883/54A
TABLE II. Insertion and withdrawal forces.
M12883/54
Condition
Test
-01, -02
-03
-04
Insertion force (max)
21 lbf (93.41 N)
23 lbf (102.31 N)
25 lbf (111.21)
Initial
Withdrawal force (min)
2.0 lbf (8.90 N)
2 lbf (8.90N)
2 lbf (8.90 N)
After 10
23 lbf (102.31 N)
25 lbf (111.21 N)
27 lbf (120.10 N)
Insertion force (max)
insertions and
Withdrawal force (min)
2.0 lbf (8.90 N)
2 lbf (8.90 N)
2 lbf (8.90 N)
withdrawals,
before vibration
23 lbf (102.31 N)
25 lbf (111.21 N)
27 lbf (120.10 N)
Insertion force (max)
After vibration
Withdrawal force (min)
2.0 lbf (8.90 N)
2.0 lbf (8.90 N)
2 lbf (8.90 N)
Contact installation tools: See table III.
TABLE III. Contact installation tools.
PIN
PIN
Nomenclature
Part or Identifying
(size 12-12, 12-16)
(size 16-16)
Number (PIN)
contacts
contacts
(size 20-20 contacts)
Crimp tool
M22520/2-01
M22520/1-01
M22520/1-01
Positioner
M22520/2-02
M22520/1-02
M22520/1-02
Insertion/removal tool
Unwired
M81969/30-05
M81969/30-06
M81969/30-07
Wired
M81969/14-02
M81969/14-03
M81969/14-04
Torque: Relay socket and hardware shall be subjected to testing as specified in table IV. Sockets shall
be installed in mounting panel when test torque is applied. No physical damage shall be permitted.
Torque shall be maintained for a reasonable period of time to insure stud, socket, and associated
hardware have not been damaged (see table IV).
TABLE IV. Torque requirements (installed in panel conditions.
Torque
Thread size
Testing
Installation
Inch-pounds
Newton-meters
Inch-pounds
Newton-meters
8
0.90
4 ±1
0.45 ±0.11
.112-40
+1
+0.11
-0
-0
2.71
24
18 ±1
2.03 ±0.11
+0.11
.190-32
+1
-0
-0
Weight: Maximum weight of relay, socket, all contacts and all associated hardware shall be as specified
in table V.
9
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