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|  MIL-W-70467 (AR)
3.
REQUIREMENTS.
3.1 Materials. Materials shall be in accordance with the
applicable drawings and specifications-
3.2 Components and assemblies. The components and assemblies
shall comply with all requirements specified on Drawing 9370251 and
associated drawings and with all requirements specified in
applicable specifications and standards.
3.3 M423 Safe & arm.
None of the springs used in the
3.3.1 Spring embrittlement.
fabrication of the S&A shall break when extended or distorted to the
point of minimum permanent distortion.
3.3.2 Spring set. The setback weight spring shall return
within .015 inch of the original free length when compressed and
heat treated.
3.3.3 Arming and detent functioning. The rotor assemb ly in the
loaded Sa f ety and Arming Device (S&A) sha ll ro tate fr om the fu lly
safe posi t ion to the fully armed position a nd the detent sh all lock
the rotor in the fully armed position.
3.3.4 Rotor reset capability. The rotor assembly shall be
capable of returning to the unarmed position on its own after the
S&A device has been partially armed.
3.3.5 Arming time. The rotor assembly in the loaded S&A shall
rotate from the fully safe position to the fully armed position in
not less than 0.67 sec. and not more than 0.88 sec. when subjected
to arming acceleration of 27.00 plus or minus 0.25 g's. The S&A
shall meet this requirement at any temperature between -50F 5F
and +160F 5F.
3.3.6 Non-arming test. The rotor assembly in the loaded S&A
shall not arm when subjected to acceleration of 11.25 g's minimum
for a minimum of three (3) seconds. This test shall be conducted
subsequent to the Arming Time Test.
3.3.7 Detonators. All detonators, prior to assembly, shall
have been subjected to and passed all requirements of MIL-D-50868.
3.3.8 Primers. All primers, prior to assembly, shall.have been
subjected to and passed all requirements of MIL-P-48077.
3.4 Interfaces. The warhead shall be compatible with the MK66
Mod 1 and MK 40 Mod 3.
3
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