MIL-DTL-29229B(YD)
connected by the welds. Welds shall transmit stress without permanent deformation or failure
when the parts connected by the weld are subjected to proof or service loadings.
3.10.3 Composite plate welding. Preheat ASTM A514 steel before welding. Preheat and
interpass temperatures shall be 450 degrees Fahrenheit (232 degrees Celsius).
3.10.4 Welder qualification. All welders shall be qualified for the types of welds and the welding
positions required for use in the construction and fabrication of each unit shown on the applicable
drawings and specified herein. Qualification shall be on the type base material and filler utilized in
actual construction, or on similar alternate material not requiring operator requalification. Welder
qualification shall be performed in accordance with the applicable sections of AWS D1.1. Copies
of the qualification record for each qualified welder shall be kept by the manufacturer or
contractor and shall be available to authorized Government inspectors when requested.
4. VERIFICATION
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 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
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
material, either indicated or actual, nor does it commit the Government to accept defective
material.
4.1.2 Material inspection. The contractor is responsible for ensuring that supplies and materials
are inspected for compliance with all the requirements specified herein and in applicable
referenced documents.
4.2 Classification of inspections. The inspection requirements specified herein are classified as
follows:
a. First article inspection (see 4.2.1).
b. Quality conformance inspection (see 4.2.2).
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