3.7.1 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.
All bends shall be made by controlled means to ensure uniformity of size and shape.
3.7.2 Bolted connections. Bolt holes shall be accurate and true, 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.
3.7.3 Riveted connections. All rivet holes shall be accurately punched or drilled and
shall have the burrs removed. Rivets shall completely fill the holes. Rivet heads shall be of a
suitable shape and shall be concentric with the rivet. Rivet heads shall make full contact with the
mating surface. The rivets shall be fabricated to develop a joint strength of not less than the
3.7.4 Welding. Surfaces to be welded shall be free from foreign matter which would be
injurious to the weld. Welding procedures shall be in accordance with a nationally recognized
code. Welds shall be of sufficient size and shape to develop the full design strength of the parts
connected by the welds. Welds shall transmit imposed stresses without permanent deformation
or failure when subject to proof or service loadings.
3.7.5 Castings. All castings shall be sound and free from patching, misplaced coring,
warping, or any other defect which would reduce the casting's ability to perform its intended
3.7.6 Components. Defective components, or parts and assemblies which have been
repaired or modified to overcome deficiencies, shall not be furnished.
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 as specified herein.
Except as otherwise specified in the contract, the contractor may use his own 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 assure
supplies and services conform to prescribed requirements.