MIL-DTL-60515C
3. REQUIREMENTS
3.1 First article. When specified in the contract or purchase order (see 6.2), a sample shall be
subjected to the first article inspection (see 4.4 and 6.3).
3.2 Materials. All materials used in the manufacture of the initiators shall conform to the
specifications referred to on the respective drawings unless specific approval in writing covering a
departure therefrom has been obtained from the cognizant Navy design activity prior to manufacture.
When alternate materials or methods of manufacture are specified on the drawings, the bidder's selections
shall be clearly stated in the proposal.
3.2.1 Raw material. The contractor shall be responsible for selecting from the classification list
contained in the raw material specification the surface and physical condition of the raw material intended
for use in manufacture.
3.3 Hardness and other physical properties. Hardness and other physical properties required by
the drawing shall be uniform throughout the part within specified tolerances. Requirements for all alloy
steel parts shall be achieved by quenching and tempering.
3.4 Hydrostatic pressure. The initiator chamber and cap shall withstand a hydrostatic pressure of
5500 to 6500 pounds per square inch (psi) for 15 seconds, minimum, without deformation or mechanical
failure (see 6.4.1).
3.5 Firing pin release. The firing pin of the metal parts assembly, less safety pin, cartridge retainer
and chamber, shall release from the cocked position when the application of an axial load of 20 to 35
pounds has withdrawn the initiator pin 3/4 inch, maximum (see 4.5.3.3).
3.6 Initiator pin security. Application of an axial load of 200 to 220 pounds applied to the initiator
pin of the metal parts assembly shall not withdraw the initiator pin past the safety pin. Load application
shall cause no permanent deformation of the safety pin (see 4.5.3.4).
3.7 Metal parts assembly. Parts shall be combined to produce an assembly which conforms to the
requirements of the metal parts assembly drawing. All threaded joints shall be assembled handtight.
3.8 Protective finish. Protective finish shall be in accordance with the applicable specifications and
shall apply to all surfaces of the component regardless of contour configuration.
3.9 Residual magnetism. The metal parts assembly shall not deflect the indicator of the compass
more than five degrees in either direction using procedures in 4.6.6.
3.10 Workmanship. Initiators shall be free of cracks, splits, or other defects which might prevent
proper mating with connecting parts or proper functioning of the device.
3.10.1 Metal defects. All components shall be free from cracks, splits, cold shuts, inclusions,
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