MIL-DTL-46035C(MR)
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
this 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 accept defective material.
4.2 Classification of inspection. All examination and testing in this specification is classified as
quality conformance inspection and shall be to determine conformance to the requirements of the
specification to serve as a basis for acceptance of the material covered by this specification.
4.2.1. Government surveillance. Unless otherwise specified (see 6.2), the contractor will be
subject to periodic random checking of material ordered under this specification through comparison
testing of mechanical properties by both Government and contractor (see 4.4.2.3 and 4.6.1.2.1.2).
Not more than ten percent of the lots in the contract will be subject to this comparison testing.
4.3 Lot. A lot shall consist of all material from the same heat or melt and of the same condition
and size submitted for inspection at one time. Identification of each heat or melt shall be maintained
throughout manufacture and inspection.
4.4 Sampling.
4.4.1 For chemical analysis. At least one sample for chemical analysis shall be selected from each
heat in accordance with ASTM E120.
4.4.2 For mechanical properties tests.
4.4.2.1 For closed and open die forgings. Unless otherwise specified (see 6.2), at least one
sample for mechanical properties tests shall be taken from one piece out of every group of twenty-six or
fraction thereof from the same lot. The samples shall be of full cross-section and of sufficient length to
obtain specimens in accordance with 4.6.1.2.
4.4.2.2 For tubing and extruded shapes. Unless otherwise specified (see 6.2), at least one sample
for mechanical properties tests shall be taken from each end of each multiple length of tubing or
extruded shape. The samples shall be of full cross-section and of sufficient length to obtain specimens in
accordance with 4.6.1.2.
4.4.2.3 For Government surveillance tests. One sample for mechanical properties tests shall be
taken from each lot to be tested. Samples shall be of full cross section and of sufficient size to obtain
specimens in accordance with 4.6.1.2.1.2.
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