MIL-DTL-13931J
following this term. The Government representative shall control the stamp and observe the stamping
operation as required to assure successful completion of all required examinations and tests.
3.5 Proof-testing. Proof-testing shall comply with requirements stated in the applicable individual
cannon specification and this specification.
3.6 Workmanship. Surfaces shall be free from visible irregularities or defects that may adversely affect
function, strength, serviceability or detract from good appearance. Fins, burrs, and other excess metal
shall be removed. Unless otherwise specified on the drawing, lathe centers shall be removed. Salvage
operations such as repair by welding or hammering to shape shall not be done without approval of the
Procuring Contracting Officer.
4. VERIFICATION
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 (examination 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 as specified
herein, unless disproved by the Government. The Government reserves the right to perform any of the
inspections set forth in this specification where such inspections are deemed necessary to assure supplies
and services conform to prescribed requirements.
4.2 Terms and definitions. The quality assurance terms and definitions used in this specification and in
the individual cannon specifications are in accordance with ASQ A8402.
4.3
Lot inspection.
4.3.1 Lot formation. The formation, size and presentation of lots for inspection shall be in accordance
with ASQ Z1.4 (see 6.2), and subject to approval by the Government representative.
4.3.2 One hundred percent inspection. When one hundred percent inspection is specified for certain
characteristics, each unit shall be inspected for those characteristics and the defective pieces shall be
removed. The Government reserves the right to inspect any unit of product for any requirements.
4.3.3 Sampling inspection. When sampling inspection is authorized, the procedures of ASQ Z1.4 (see
6.2) or any other approved system shall apply. Application for use of a substitute system shall be made
to the Procuring Contracting Officer.
4.3.3.1 Rejected lots. Rejected lots shall be screened or reworked for the defective characteristics.
Tightened inspection shall be used for the re-inspection of those characteristics which previously caused
the rejection of the lot. If re-heat treating has been accomplished, the resubmitted lot shall also be re-
inspected for all other characteristics in accordance with the normal inspection procedure.
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