MIL-DTL-46992E (OS)
3.15 Workmanship. The workmanship requirements are as specified on the drawings, specifications,
and the following. Workmanship and finish shall be in accordance with the highest grade practice used in
manufacturing military weapons. Finished items and parts shall not exhibit poor material and processing
such as seams, laps, laminations, cracks, visible steps, sharp edges, nicks, scratches, butts, deformations,
and missing operations that may affect assembly, serviceability, functioning, operation, appearance, or
safety. Fins and other extraneous metal shall be removed from cast or forged parts. Hammering to shape,
salvage operations (including repair by welding), or other similar practices shall not be permitted without
prior approval of the contracting officer. Surface coatings shall be continuous except for a few light
scratches not exposing base material.
3.15.1 Metal defects. All components shall be free from cracks, splits, cold shuts, inclusions,
incomplete or damaged threads, porosity, or any similar defect.
3.15.2 Burr. No part shall have a burr which might interfere with the assembly or function of the item or
which might be injurious to personnel handling the item.
3.15.3 Foreign matter. No part or assembly shall contain chips, dirt, grease, rust, corrosion, or other
foreign matter.
3.15.4 Visual and Dimensional Examination. The components shall be visually and dimensionally
inspected to ensure compliance with the drawings.
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified as follows:
a. First article inspection (see 4.2)
b. In process inspection (see 4.3)
c. Lot acceptance inspection (see 4.3.1.4).
4.1.1 Verification terms and definitions. Reference shall be made to ASQC A8402 to define the
verification terms used.
4.2 First article inspection. First article inspection shall be performed after award of contract and prior
to production. After inspection and provisional acceptance at the source, sample shall be inspected for all
requirements of the drawings and specifications at a Government laboratory or such other facility
specified in the contract. First article inspection shall be performed on sample units which have been
manufactured in the same manner, using the same materials, equipment, processes, and procedures as to
be used in regular production. All parts and materials including packaging and packing shall be the same
as used for regular production and shall be obtained from the same source of supply (see 6.2 and 6.4).
Unless otherwise specified, all inspections shall be performed in accordance with the test conditions
specified in MIL-STD-810.
4.2.1 Sample size. Unless otherwise specified, the first article shall consist of 28 assembled units, 10
complete sets of components and subassemblies (that is, 10 each of every component and 10 each of the
lanyard and firing pin assemblies and 10 knife delay assemblies), and one set of metal components,
without coating or protective finish, for dimensional and visual examination. From the 28 assembled
units 12 shall be submitted to ambient vibration and 7 to high setback. The vibration units will be
submitted to the functioning over temperature range after vibration.
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