MIL-DTL-0048669A (AR)
TABLE II. First Article Inspection
Escapement Assembly and Components
PARAGRAPH
NO. OF
REQUIREMENT
EXAMINATION OR TEST
REFERENCE
SAMPLE
PARAGRAPH
INSPECTION METHOD
UNITS
Spring, Setback (Dwg. 12999563)
Push Test of simulated setback pin
25
3.2
4.5.2
1/
Verification of heat treat
3.2
4.5.3
Verge Assembly (Dwg. 8886365)
Torque Test
50
3.2
4.5.6
Disassembly test
50
3.2
4.5.7
Pinion Assembly (Dwg._ 8886368)
Push off test
50
3.2
4.5.8
Torque Test
50
3.2
4.5.9
Rotor and Gear Sector Assembly (Dwg. 9219871)
Static push test
50
3.2
4.5.10
Escapement Assembly (Dwg. 8886357)
Push off test
125 2/
3.2
4.5.4
125 2/
3.3
AAIE/4.5.1, 4.5.11
Arming test
Arming time, min
125 2/
3.4
AAIE/4.5.1, 4.5.12
Non arming
125 2/
3.5
AAIE/4.5.1, 4.5.13
Transportation vibration
3/
3.7
4.5.14, 4.5.20
Pin Retraction and Spring Removal Test
100
3.6
4.5.15
Jolt
3/
3.8
4.5.16
3/
3.9
4.5.17
Jumble
Functioning
3/
3.10
4.5.18
Non-functioning
3/
3.11
4.5.19
NOTES:
1/ Three (3) setback springs having the lowest push force from the simulated setback pin push test.
2/ The quantity to be tested is determined by total required for the tests defined herein for FAT plus the
higher assembly FAT requirement quantities (i.e. Jolt, Jumble, Functioning, Non-functioning). All
escapements required to support higher assembly FAT requirements shall be subjected to these tests. All
escapements shall be tested 100%.
3/ This requirement is tested at a higher assembly level. See either MIL-DTL-48683 (M918 TP;
Projectile Assembly) or MIL-DTL-50869 (M550 Fuze Less Spitback Assembly) for quantities.
4.4 Conformance inspection.
4.4.1 Inspection lot formation. Lot formation shall be in accordance with MIL-STD-
1916. For the components identified below, each inspection lot of escapements shall be
produced with components complying with the following constraints:
a. Detonators from one interfix number, from one manufacturer.
b. Metal parts or components from one interfix number, from one manufacturer.
6
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