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MIL-P-18761C(OS)
4.7.6 Vibration. The primer shall be subjected to the transportation vibration test of MIL-STD-331, Test
B1, section 6.1.2, table B1-4, except that the orientation of each primer during this three-phase test shall be
as follows:
a.
Phase I: Primer axis horizontal
b.
Phase II: Primer axis vertical, primer stock down
c.
Phase III: Primer axis vertical, primer stock up
The primer shall be marked with a line in the axial direction at the junction of the stock and tube indexing their
initial relative position in order to determine the integrity after vibration. The primer shall be rigidly mounted
to the vibration table at the primer stock. After vibration, the primer shall be subjected to the tests of 4.7.5.
4.7.7 Ballistics. The primer shall be assembled into a 40mm test vehicle in accordance with Drawing
5871562. All components shall be from service acceptable lots. The propellant shall be conditioned at 90
15F for 24 hours minimum prior to assembly of the propelling charge. All other components shall be
conditioned at 85 20F for 24 hours minimum prior to assembly of the propelling charge. The assembled
propelling charge shall be conditioned at 90 5F for 48 hours minimum immediately prior to firing. The
rounds shall be fired in a 40mm percussion-fired gun with a first quarter life barrel. Projectile ejection time
shall be recorded.
4.7.8 Inspection of packaging. The packaging, packing, and marking shall be visually examined for
conformance to section 5.
5. PACKAGING
5.1 Packaging (Level A). The primer shall be packaged in accordance with Drawing 6213157. One unit
of desiccant, conforming to Type I of MIL-D-3464, shall be placed in each container prior to securing the
cover.
5.1.1 Inert components. Components and subassemblies shall be packaged in commercial fiberboard
containers meeting the requirements of PPP-B-636. Each container shall incorporate corrugated or solid
fiberboard dividers or collars suitable for preventing damage in handling and transportation. The gross weight
of the contents shall not be greater than 70 pounds.
5.2 Packing (Level A). Primers packaged in accordance with 5.1 shall be packed in accordance with
Drawing 6213158.
5.3 Palletization. Palletization of primers packed in accordance with 5.1 shall be in accordance with MIL-
STD-1322/853.
5.4 Marking. In addition to any special marking required by the contract or purchase order (see 6.2), all
markings shall be in accordance with MIL-STD-129 and 49 CFR 171-178.
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