MIL-DTL-15291G
TABLE II. Qualification inspection for SR classes.
1
Sample number
Inspection
Requirement
Test method
1
2
3
4
5
6
7
General Examination
1
1
1
1
1
1
1
Operation
2
2
2
2
2
2
2
Momentary position
3
return
Stop strength
4
Transfer time
3
3
3
3
3
3
Salt spray
4
4
Vibration
4
4
Shock
5
5
Dielectric with-
6
6
4
5
5
standing voltage
Overload
7
Contact resistance
7
5
6
4
6
5
Endurance, ac
6
7
5
Endurance, dc
7
8
Temperature rise
6
Insulation resistance
8
8
9
6
7
Operation
9
8
9
10
7
7
8
9
Transfer time
10
8
10
11
8
9
General Examination
11
12
10
11
10
6
9
1
For classes 1SR, 3SR, 6SR, or 20SR the test sample shall be of the following types for each class:
Sample:
1. Type SR3B2 - Front mounted, side connected
2. Type SR3B2 - With stop and spring return
3. Type SR3A2 - Front mounted, side connected
4. Type SR3B1 - Front mounted, back connected
5. Type - Longest front mounted switch not requiring rear support listed for each class.
6. Type SR3A3 - Base mounted, side connected
7. Type SR3B3 - Base mounted, side connected
4.4 Quality conformance inspection.
4.4.1 Inspection of product for delivery. Inspection of product for delivery shall consist of groups A and
B inspection (see 6.3).
4.4.2 Inspection lot. All rotary switches of the same class presented for delivery at one time shall be
considered a lot. The lot may include the entire contract quantity or it may be the production of any
convenient time period.
4.4.3 Group A inspection. Group A inspection shall consist of the inspections specified in table IV and
shall be conducted in the order listed. Defective switches shall not be offered for delivery until the defects
have been corrected and the rotary switches re-examined and retested.
4.4.3.1 Sampling plan. As a minimum, the contractor shall inspect a sample quantity in accordance
with the sampling plan specified herein. Sample size depends on classification of the characteristic as
defects is found in any sample, the entire lot shall be rejected. The contractor has the option of screening
100 percent of the rejected lot for all specified attributes, or providing a new lot, which shall be inspected
in accordance with the sampling plan.
9
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business