FF-C-450F
3.6 Performance.
3.6.1 Type I, II and III clamps. Types I, II, and III clamps shall be capable of passing the tests specified in 4.4.3.1.
3.6.2 Type IV clamps. The clamp grip shall be not less than 90 percent of its applicable wire rope rated breaking
strength for sizes 1/4 inch and under and not less than 85 percent for sizes over 1/4 inch. Nuts for type IV clamps
shall be capable of passing the magnetic particle test of 4.4.3.1 when such test is required in the contract or order
(see 6.2).
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 as specified herein. Except as otherwise specified in
the contract or order, the supplier 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 that supplies and services conform to prescribed requirements.
4.1.1 Test equipment and inspection facilities. The contractor shall establish and maintain a calibration system in
accordance with ISO 10012 and NCSL-Z540.3.
4.2 Quality conformance inspection. Quality conformance inspection shall consist of the tests in 4.3.
4.2.1 Inspection lot. An inspection lot shall consist of clamps of the same type, class, material, protective coating,
thread series, and size produced under essentially the same conditions and presented for acceptance at the same
time.
4.2.2 Sampling tests. A sample of clamps shall be randomly selected in accordance with table I, if one or more
defects are found, the lot shall be rescreened and defects removed. After screening and removal of defects, a new
sample of clamps shall be randomly selected in accordance with table I, if one or more defects are found in the
second sample, the lot shall be rejected and shall not be supplied to this specification. in accordance with table I.
4.2.2.1 Rejection and retest. When one or more clamps fail to meet the specification, acceptance of all clams will
be withheld until the extent and cause of failure are determined. After corrections have been made, all necessary
tests shall be repeated.
4.2.2.2 Sampling plan. Accept on zero, for general inspection as specified in table I.
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