MIL-DTL-20517J (AR)
6.6 Equivalent test methods. The test methods given in this specification are the
official methods to be used. The contractor may request using other methods providing
that the proposed method is equivalent (accuracy and precision) to the method given in
this specification. Prior approval of the Contracting Officer is required for use of the
equivalent test methods. A description of the proposed method should be submitted
through the Contracting Officer. This description should include, but not be limited to,
the procedures used, the accuracy and precision of the method, test data to demonstrate
the accuracy and precision and drawings of any special equipment required.
6.7 Definition of full crimp. A full crimp is defined as 360 degrees of intimate
contact by metal deformation of the impulse cartridge around the outside circumference
of the closure washer, overlapping to the top surface. Additionally, the closure washer
and closure disc should sit securely due to the crimp.
6.8 Cylindrical portion. The cylindrical portion of the charge case is defined as
the charge case without the fuze or top pieces of the charge case assembly.
6.9 Precaution. This specification involves sampling and testing of toxic and
hazardous materials. Accordingly, it is emphasized that all applicable safety rules,
regulations and safe procedures must be followed in handling and processing the
materials.
6.10 Justification of critical defects.
6.10.1 Propelling charge weight. (Paragraph 4.3.2.7, Critical 1) If the propelling
charge weight is insufficient, the charge case will not eject from the flare gun, or will not
eject sufficiently far enough to preclude the operator from severe injury, including the
loss of a hand.
6.10.2 Primer above flush in impulse cartridge. (Paragraph 4.3.2.7, Critical 2) If
the primer is above flush in the impulse cartridge, accidental ignition could occur in
handling, potentially providing a hazard to operators or nearby personnel.
6.10.3 Charge above flush in fuze assembly. (Paragraph 4.3.2.12, Critical 1) If the
charge is above flush in the fuze assembly, the weight of the charge in inspection will be
greater than that which is truly functioning. This could lead to short fuze times which
may not burn for a sufficient amount of time to have the projectile launched a safe
distance away from the user.
6.10.4 Fuze delay composition weight. (Paragraph 4.3.2.12, Critical 2) If the Fuze
delay composition weight is insufficient, it is an indicator that the fuze will not burn for a
sufficient amount of time to have the projectile launched a safe distance away from the
user.
6.10.5 Cracks on fuze assembly housing. (Paragraph 4.3.2.12, Critical 3 and
Paragraph 4.3.2.13, Critical 2) If the fuze assembly housing is cracked, the flame has an
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