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|  MIL-T-63531(AR)
4.4.2 Examination. The examinations listed in this
specification for Classification of Defects shall be performed on
inspection lots as defined in 4.4.1 of this specification.
a. Sampling plans. Unless otherwise specified in the
Classification of Defects and Tests Tables, sampling plans and
procedures for major and minor defects shall be in accordance with
MIL-STD-105, Inspection Level II.
4.4.3 Testing. Testing is described in the First Article and
Quality Conformance Inspection tables.
4.4.4 Inspection equipment. The inspection equipment
required to perform the inspections and tests prescribed in this
specification is identified in the "Paragraph Reference/Inspection
Method column in the tables starting with paragraph 4.4.2.1, and
the test method paragraphs (see 4.5). All inspection and test
equipment shall be calibrated in accordance with MIL-W-63150. The
contractor shall submit for approval inspection equipment designs
in accordance with the terms of the contract. See 6.3 herein.
4.5 Methods of inspection.
4.5.1 Performance test. The Universal Boresight Kit (UBK)
shall be tested for compliance with the specified performance
requirements. Any UBK which fails to comply with the specified
performance requirement or evidences degradation of its
operational performance shall be classed defective. Test
equipment and procedures shall be satisfactory to the contracting
officer (see 4.4.4).
4.5.2 Salt spray test. Samples shall be selected from each
protective finished lot and subjected to the salt spray test in
accordance with the procedures specified in ASTM B 117. Unless
otherwise specified on the applicable drawing the minimum exposure
time shall be one and one half (1 1/2] hours using a 5% sodium
chloride solution. Rejection shall be in accordance with the
applicable protective finish specification.
4.5.3 Samples shall be selected from each heat treatment
batch (see Note) and subjected to this test. If any part fails to
comply with the requirement specified on the applicable drawing,
the part shall be classed defective. The hardness test shall be
performed in accordance with the procedure specified in ASTM E 18.
Each heat treat batch shall remain segregated until completion of
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