F-F-320C
3.15 Workmanship.
3.15.1 Steel fabrication. The steel used in fabrication shall be free from kinks, sharp bends, and
other conditions which would be deleterious to the finished product. Manufacturing processes
shall not reduce the strength of the steel to a value less than intended by the design.
Manufacturing processes shall be done neatly and accurately. All bends shall be made by
controlled means to ensure uniformity of size and shape.
3.15.2 Bolted connections. Bolt holes shall be accurately punched or drilled and shall have the
burrs removed. Washers or lockwashers shall be provided in accordance with good commercial
practice, and all bolts, nuts, and screws shall be tight.
3.15.3 Riveted connections. Rivet holes shall be accurately punched or drilled and shall have the
burrs removed. Rivets shall be driven with pressure tools and shall completely fill the holes.
Rivet heads, when not countersunk or flattened, shall be of approved shape and of uniform size
for the same diameter of rivet. Rivet heads shall be full, neatly made, concentric with the rivet
holes, and in full contact with the surface of the member.
3.15.4 Welding. Welding procedures shall be in accordance with a nationally recognized welding
code. The surface of parts to be welded shall be free from rust, scale, paint grease, or other
foreign matter. Welds shall be of sufficient size and shape to develop the full strength of the parts
connected by the welds. Welds shall transmit stress without permanent deformation or failure
when the parts connected by weld are subjected to proof and service loadings.
3.15.5 Castings. All castings shall be sound and free from patching, misplaced coring, warping,
or any other defect which reduces the casting's ability to perform its intended function.
4. QUALITY ASSURANCE PROVISIONS
4.1 Responsibility for inspection. Unless otherwise specified in the contract, the contractor is
responsible for the performance of all inspection requirements (examinations and tests) as
specified herein. Except as otherwise specified in the contract, the contractor may use his or any
other facilities suitable for the performance of the inspection requirements specified herein, unless
disapproved by the Government. The Government reserves the right to perform any of the
inspections set forth in the specification, where such inspections are deemed necessary to ensure
that supplies and services conform to prescribed requirements.
4.1.1 Responsibility for compliance. All items must meet all requirements of sections 3 and 5.
The inspection set forth in this document shall become a part of the contractor's overall inspection
system or quality program. The absence of any inspection requirements in this document shall not
relieve the contractor of the responsibility of ensuring that all products or supplies submitted to
the Government for acceptance comply with all requirements of the contract. Sampling
inspection, as part of manufacturing operations, is an acceptable practice to ascertain
conformance to requirements, however, this does not authorize submission of known defective
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