* 3.22.1 Welding. Welding shall conform to the American Welding Society's Structural
Welding code, Steel, D1.1 and, when specified (see 6.2), to the requirements of MIL-STD-1261,
class 2. The surface of parts to be welded shall be free from rust, scale, paint, grease, or other
foreign matter. Welding rods shall be compatible with the metal being welded. Spot, tack or
intermittent welds shall not be used where structural strength is required. Weld penetration shall
provide transference of maximum design stress through the base metal juncture. Fillet welds
shall be provided when necessary to reduce stress concentration.
* 18.104.22.168 Welding workmanship specimens. When specified (see 6.2), the contractor shall
prepare, or shall have prepared, welding workmanship specimens in accordance with the
requirements of MIL-STD-1261, class 2 representing each typical weld joint encountered on the
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 (examination 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
assure 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 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 for 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 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.
4.2 Government verification. Quality assurance operations performed by the contractor will
be subject to Government verification at unscheduled intervals. Verification will consist of
observation of the operations to determine that practices, methods, and procedures of the
contractor's inspection are being properly applied. Failure of the contractor to promptly correct
product deficiencies discovered shall be cause for suspension of acceptance until correction has
been made or until conformance of product to specification criteria has been demonstrated.