MIL-DTL-12883/40F
TABLE III. Insertion and withdrawal forces.
M12883/40
-01 through 05,
Condition
-07 through 11,
-06, 012, -18, and 24
-13 through 17,
-19 through 23
Insertion force (max)
26.25 lbf (116.77 newton)
30.0 lbf (133.45 newton)
Initial
Withdrawal force (min)
1.75 lbf (7.78 newton)
2.00 lbf (8.90 newton)
After 10
Insertion force (max)
25 lbf (111.21 newton)
30.0 lbf (133.45 newton)
insertions
and
withdrawals,
Withdrawal force (min)
1.75 lbf (7.78 newton)
2.00 lbf (8.90 newton)
before
vibration
After
Insertion force (max)
14 lbf (62.28 newton)
26 lbf (115.65 newton)
vibration
Withdrawal force (min)
1.31 lbf (5.83 newton)
1.5 lbf (6.67 newton)
Mounting hardware: The mounting hardware shall allow mounting the socket above, or below the
panel or chassis (see figures 2 and 3), and shall allow mounting and securing the relay to the socket
without disturbing the mounted socket or access to the wiring side of the socket. The hardware shall
provide the nominal spacing between socket surface and relay mounting flange, regardless or
mounting configuration.
Supplied with relay socket:
6 each .112-40 self locking nuts (.206 max dia x .176 max height).
6 each .112 flat washers (.220 max O.D. x .018 max thick).
3 each .190-32 self locking nuts (.330 max dia x .190 max height).
3 each .190 flat washers (.360 max dia x .190 max height)
3 each studs for loose mounting configuration only (see figure 2).
Fixed mounting studs: Studs shall be molded into the mounting flange of the socket and shall be
designed to prevent rotation of the stud within the flange (see figure 3).
11