MIL-DTL-0050869F (AR)
4.5.9 Firing pin retraction of centerplate assembly. After completion of the retention
check of firing pin spring on centerplate assembly of 4.5.6 the firing pin spring retraction shall
be checked. The centerplate assembly shall be placed in an approved fixture. The fixture shall
not compress the firing pin spring. The pre-load specified on the applicable drawing shall be
applied to the firing pin representing the nominal spring force. The assembly shall then be
rotated at the arming speed specified on the applicable drawing. The total deflection during
rotation as well as the pre-load deflection shall be measured. This test is a non-destructive test.
Parts so tested may be returned to the lot.
4.5.10 Air pressure test of fuze crimped joint. The fuze shall be placed in an approved
fixture and a measured quantity of air shall be applied to produce the air pressure specified on
the applicable drawing. The fixture and measured quantity of air shall be verified by
demonstration through the detection of a known defective unit. This test is a non-destructive
test. Parts so tested may be returned to the lot.
4.5.11 Jolt. Prior to the jolt test the fuze assemblies shall be x-rayed in accordance with
4.5.16. The fuzes shall then be subjected to the test specified in Test A1-1 of MIL-STD-331B.
After completion of the jolt test the fuzes shall be x-rayed again in accordance with 4.5.16 to
determine compliance with 3.4. If one or more fuzes fails to meet the requirements of 3.4 or
has experienced damage that compromises any safety feature of the fuze the lot shall be rejected
and set aside for disposition in accordance with MIL-STD-1916. This test is a destructive test.
Parts so tested shall not be returned to the lot.
4.5.12 Jumble. Prior to the jumble test the fuze assemblies shall be x-rayed in
accordance with 4.5.16. The fuzes shall then be subjected to the test specified in Test A2-1.of
MIL-STD-331B. After completion of the jumble test the fuzes shall be x-rayed again in
accordance with 4.5.16 to determine compliance with 3.5. If one or more fuzes fails to meet the
requirements of 3.5 or has experienced damage that compromises any safety feature of the fuze
the lot shall be rejected and set aside for disposition in accordance with MIL-STD-1916. This
test is a destructive test. Parts so tested shall not be returned to the lot.
4.5.13 Transportation vibration. Prior to transportation vibration test the fuze assemblies
shall be x-rayed in accordance with 4.5.16. The fuzes shall then be packed in their regular
shipping containers and be tested in accordance with MIL-STD-331 (Test No.B2, with vibration
levels conforming to 6.1.2.1 of Test B1). The test shall be performed at ambient temperature
only. Simulated fuzes may be used to insure a full box. After completion of the transportation
vibration test the fuzes shall be x-rayed again in accordance with 4.5.16 to determine
compliance with 3.3. If one or more fuzes fail to meet the requirements of 3.3 or has
experienced damage that compromises any safety feature of the fuze the lot shall be rejected and
set aside for disposition in accordance with MIL-STD-1916. Parts subjected to subsequent tests
shall not be returned to the lot. Only those fuze assemblies selected for non-functioning tests
shall be subjected to this test.
4.5.14 Functioning. This test shall be conducted as a higher assembly requirement in
accordance with specification MIL-DTL-50872 (Cartridge, 40MM: HEDP, M433).
21
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business