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|  MIL-P-53108(ME)
3.28.3 Welding. The surfaces of parts to be welded shall be free from rust, scale, paint,
grease, or other foreign matter. Weldments, including weld beads, shall be of homogeneous
appearance and form without spattering or other irregularities, complying with the size,
configuration and other dimensional requirements to develop the full strength of the parts joined
by the welds. No cracks of any type are permitted. All welding is to be produced by ASME
code qualified welders. Welds shall transmit stress without permanent deformation or failure
when the parts connected by the weld are subjected to proof and service loadings. Welds shall
be in accordance with ASME Boiler and Pressure Vessel Code.
3.28.4 Welders. Before assigning any welder or welding operator to welding work, the
contractor shall obtain certification that the welder or welding operator has passed qualification
tests as prescribed for the type of welding to be performed and that such qualification is effective
as defined by the ASME Boiler and Pressure Vessel Code, Section IX, Welding and Brazing
Qualifications. In the event of evidence of poor welds, the Government reserves the right to
require testing of any welder or welding operator. All test results shall be made available for
review by the contracting officer or the contracting officer's representative.
3.28.5 Machine work. Tolerance and gages for metal fit shall conform to commercial
industry standards.
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
(examinations and tests) 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 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 supplies and services
conform to prescribed requirements.
4.1.1 Responsibility for compliance. All items shall meet all requirements of sections 3
and 5. The inspection set forth in this specification shall become a part of the contractor's
overall inspection system or quality program. The absence of any inspection requirements in the
specification 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 material, either indicated or actual, nor does it commit the Government to acceptance
of defective material.
4.1.2 Component and material inspection. The contractor is responsible for insuring that
components and materials are manufactured, examined, and tested in accordance with referenced
specifications and standards, as applicable.
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