MIL-P-18716C
3.5 Detail strip. The primer and all its components shall conform to the following requirements (see
4.7.3):
a. (C1) Each critical characteristic shall be as specified in the applicable documents listed on
Drawing 2434756 and in this specification.
b. (M103) Each major characteristic shall be as specified in the applicable documents listed on
Drawing 2434756 and in this specification.
3.6 Electrical resistance (M104). The primer shall have an electrical resistance of 0.10 to 0.18 ohm
(see 4.7.4).
3.7 Functional. The primer shall meet the following criteria (see 4.7.5):
a. (M105) Primer functioning time shall be a maximum of 0.006 second;
b. (M106) The primer shall not misfire (see 6.7.1);
c. (M107) The primer shall not exhibit blowback (see 6.7.2); and
d. (C2) The primer shall not exhibit a split stock, split tube, or detachment of metallic components other than blowout of ignition element closing discs.
3.8 Vibration. The primer shall meet the following requirements (see 4.7.6):
a. (C3) The primer shall not function during vibration;
b. (C4) The stock and tube shall maintain material integrity and the primer shall maintain assembly integrity at the mating threads of the stock and tube during vibration;
c. (M108) The primer shall not otherwise physically breakdown during vibration;
d. The primer shall meet the requirements of 3.6 after vibration; and e. The primer shall meet the requirements of 3.7 after vibration.
3.9 Ballistics. The primer when assembled into a 5"/38 propelling charge shall provide ignition which will meet the requirements of 3.7 b., c., d., and the following (see 4.7.7):
a. (M109) The ejection time of the projectile from the gun barrel shall not be greater than 0.050 seconds after application of firing energy.
3.10 Workmanship. All parts shall be free of chips, dirt, grease, rust, and all other foreign materials. There shall be no burrs or other imperfections of manufacture which would affect the assembly,
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