MIL-P-52144E(ME)
3.28 Workmanship.
3.28.1 Metal fabrication. Metal used in fabrication shall be free from kinks
and sharp bends. The straightening of material shall be done by methods that
will not cause damage to the material. Corners shall be square and true. Flame-
cutting, using tips suitable for the thickness of the steel, may be employed
instead of shearing and sawing. All bends shall be made with controlled means
to insure uniformity of size and shape. Precaution shall be taken to avoid
overheating.
Heated steel shall be allowed to cool slowly. External surfaces
shall be free from burrs, sharp edges, and corners (see 3.10), except when sharp
edges or corners are required, or where they are not detrimental to safety.
3.28.2 Bolted connections. Boltholes shall be accurately formed and shall
have the burrs removed. Washers or lockwashers shall be provided where neces-
sary. Matching thread areas securing bolts conforming to SAE J429 or capscrews
shall be of sufficient strength to withstand the tensile strength of the bolt.
All fasteners shall be correctly torqued and shall have full thread engagement.
Bolts shall protrude not more than two full threads.
4.
QUALITY ASSURANCE PROVISIONS
4.1 Responsibility for inspection. Unless otherwise specified in the contract
or purchase order, the contractor is responsible for the performance of all
inspection requirements as specified herein. Except as otherwise specified in
the contract or purchase order the contractor may use his own or any other
facilities suitable for the performance of the inspection requirements speci-
fied herein, unless disapproved by the Government. The Government reserves the
right to witness or to perform any of the inspections set forth in the speci-
fication where such inspections are deemed necessary to assure supplies and
services conform to prescribed requirements.
4.1.1 Component and material inspection. The contractor is responsible for
insuring that components and materials used are manufactured, examined, and
tested in accordance with referenced specifications and standards, as applicable.
4.1.2 Disassembly inspection. Failure of any examination or test by the
first article shall be cause for disassembly, in the presence of a Government
representative, of the first article to the extent necessary to determine the
cause of the failure. Each disassembled part shall be examined in detail for
compliance with this specification and referenced drawings in regard to
materials, dimensions, tolerances, and workmanship. Parts not complying with
such requirements shall be rejected and shall be cause for rejection of the
first article. Reassembly with replacement parts and retesting shall be the
responsibility of the contractor.
4.1.3 Parts and components. Parts and components detailed on the drawings
shall be inspected in accordance with the quality assurance provisions (QAP)
shown on the drawings. The drawings specify the characteristics requiring QAP
inspection, the sampling plan, and the basis for acceptance and rejection (see
6.8 and 6.9.1).
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