MIL-DTL-001298D (AR)
4.2 First article inspection. When specified, a sample of the M2 shall be subjected to
first article inspection in accordance with Table II.
4.2.1 Submission. The first article shall be representative of the manufacturing
methods and processes to be used for lot production.
4.2.2 Inspections to be performed. The first article sample shall be subjected to all
tests in the order specified in Table II.
4.2.3 First article rejection. If any M2 fails to comply with any of the first article
requirements, the first article sample shall be rejected.
4.3 Conformance inspection. Unless otherwise specified, all M2s shall be subjected to
conformance inspection in accordance with Table II.
4.3.1 Inspection lot formation. Unless otherwise specified a lot shall consist of not
more than 500 M2s or the number produced in one month, whichever is smaller (see 6.10).
4.3.2 Lot identification. Each inspection lot shall be identified with a lot number. The
reason for rejection of any inspection lot shall be recorded. When a rejected inspection lot is
resubmitted after reconditioning, it shall be identified as such.
4.3.3 Conformance procedures. Conformance inspections and tests are specified in the
requirement/verification cross-reference matrix, Table II. Unless otherwise specified,
alternative conformance procedures, methods or equipment may be proposed to the
Government.
4.3.4 Inspections to be performed. The conformance quantity shall be subjected to all
tests in the order specified in Table II.
4.3.5 Lot rejection. If any sample fails to comply with the specified requirements the
lot shall be rejected unless otherwise specified.
4.4 Sear engagement. Manually retract the firing pin of each machine gun by moving
the cocking lever rearward, the firing pin shall engage the sear.
4.5 Firing pin protrusion. The M2 firing pin protrusion shall be tested using
government approved Standard Measuring & Test Equipment (SMTE) with the firing pin in the
fired position.
4.6 Headspace. Using the procedure provided in TM-9-1005-213-10, and the
headspace gage, 12003958 or 5351211, adjust and verify the headspace.
4.7 Timing. Using the procedure provided in TM-9-1005-213-10 and timing gage,
12003959, or 5351213 and 5351214 adjust and verify the timing.
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