MIL-DTL-3950J
3.6.18 Switch sealing. When switches are tested as specified in 4.8.19, there shall be no leakage into
the switch when it has been opened.
a. When switches are tested as specified in 4.8.19.1(a), there shall be no leakage as evidenced by
a continuous stream of air bubbles emanating from the switch case. After the test, there shall be
no leakage into the switch when it has been opened.
b. When switches are tested specified in 4.8.19.1(b), there shall be no leakage as evidenced by a
continuous stream of air bubbles emanating from the switch case.
3.7 Marking.
3.7.1 Identification of product. As a minimum, switches shall be marked in accordance with
MIL-STD-1285 as follows:
a. MS Standard part number or M number (category I only).
b. Manufacturer's part number (category II and category III).
c.
Manufacturer's name, trade mark or source code.
d. Date code.
e. Switch positions (on-off, etc.).
3.7.2 Terminal identification. Unless otherwise specified (see 3.1), terminals shall be permanently
marked in accordance with figure 1. Terminal positions not used need not be identified. Terminal
marking on the side of the case is permissible.
10
1
1
4
1
4
7
2
2
5
2
5
8
11
3
3
6
3
6
9
12
SINGLE POLE
DOUBLE POLE
FOUR POLE
NOTES:
1. All views are rear of switch with keyway down.
2. Terminal 2; terminal 2 and terminal 5; and terminal 5 and terminal 8 are considered inboard
terminals for single pole, double poles, and four poles, respectively. All others are outboard
terminals.
FIGURE 1. Terminal identification.
7
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business