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|  MIL-B-53090(ME)
requirements shall be rejected and shall be cause for rejection of the first article MCBS components.
Reassembly with replacement parts shall be the responsibility of the supplier.
4.1.3 Parts and components. Upon fabrication, parts and components shall be inspected for
compliance with the reference specifications, standards, drawings, and tolerances shown on the drawings.
4.1.4 Inspection equipment. Unless otherwise specified in the contract, the contractor is responsible
for the provision and maintenance of all inspection equipment necessary to assure that supplies and services
conform to contract requirements. Inspection equipment must be capable of repetitive measurements to an
accuracy of 10 percent of the measurement tolerance. Calibration of inspection equipment shall be in
accordance with MIL-STD-45662, note 3.
4.2 Classification of inspections. The inspection requirements specified herein are classified as
follows:
a. First article inspection, see 4.4.
b. Quality inspection, see 4.5.
c. Inspection of packaging, see 4.8.
4.3 Inspection conditions. Unless otherwise specified herein, all inspections shall be performed in
accordance with the test conditions as specified in 4.7.
4.4 First article inspection. The first article inspection shall require at least two M1 MCBS to be
inspected in accordance with table I and tested in accordance with table II. The first article inspection
requirements are listed in the specific sequence required. After the break-in test the testing sequence may
be altered as previously determined by a test plan. Each item selected for first article inspection shall
complete the quality conformance inspection (see 4.5) and have any discovered defects corrected prior to
initiating the first article inspection.
4.4.1 Final approval and acceptance. Final approval and acceptance by the Government of the first
production M1 MCBS shall be withheld until the initial production test has been completed and a final
determination has been made regarding conformity of the M1 MCBS to contractual/specifications
requirements including, but not limited to, workmanship and materials.
4.5 Quality conformance inspection.
4.5.1 Sampling. Samples shall be selected in accordance with MIL-STD-105.
4.5.2 Examination. Samples selected in accordance with 4.5.1 shall be examined in accordance with
4.6.1. Acceptable quality level (AQL) shall be 1.0 percent defective for major defects and 2.5 percent for
minor defects.
4.6 Inspection schedule.
4.6.1 Examination. Units for examination shall be examined in accordance with table I, examination
schedule.
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