MIL-DTL-28786C
3.2 Preservation. Preservation shall be in accordance with military or commercial as specified (see 3.1 and 6.2).
3.2.1 Military.
3.2.1.1 Cleaning. Switches shall be cleaned in accordance with MIL-STD-2073-1.
3.2.1.2 Drying. Switches shall be dried in accordance with MIL-STD-2073-1.
3.2.1.3 Preservatives. Contact preservatives shall not be used.
3.2.1.4 Unit packs.
3.2.1.4.1 Switches. The unit packs for switches shall be as specified in table I. The quantity per unit pack (QUP)
shall be one.
TABLE I. Military preservation requirements for switches.
Net weight
Additional
Type
Military
or cube
requirements
Switch capsules
and other
0-10 pounds
10
See 3.2.1.4.3 and 3.2.1.5
hermetically
sealed switches
Unit container shall be in
with wire leads
10
accordance with the
Over 10 pounds
or solderable
requirements of 3.3.2
terminal lugs.
Air and liquid
Container shall conform to
flow switches
41
PPP-B-566 or PPP-B-676
with external
(see 3.1.2.1).
vanes.
Container shall conform to
0-10 pounds
51
PPP-B-566, PPP-B-676, or
Pressure (with-
ASTM-D1974
out "O" rings)
and stepping
Exterior container shall be in
switches
Over 10 pounds
52
accordance with the
requirements of 3.3.2.
Box, fiber optic
inertia, leaf
0-15 cubic inches
41
See 3.2.1.4.3 and 3.2.1.5
spring, pressure
(with "0" rings),
Container shall conform to
push button,
Over 15 cubic
41
PPP-B-566, PPP-B-676, or
rotary,
inches 10 pounds
ASTM-D1974.
thermostatic,
toggle, and all
other switches
Exterior container shall be in
not otherwise
Over 10 pounds
42
accordance with the
designated in
requirements of 3.3.2.
this table
3.2.1.4.2 Accessories (when separately acquired).
3.2.1.4.2.1 Indicator lights and switch housings. Unless otherwise specified in the contract (see 6.2), indicator
lights and switch housings shall be unit packed one each in accordance with method 31 pr 32 of MIL-STD-2073-1.
3.2.1.4.2.2 Boots. Unless otherwise specified in the contract (see 6.2), boots shall be unit packed five each in
accordance with method 10.
3
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