MIL-DTL-82068D
3.11 Fabrication.
3.11.1 Steel fabrication. The steel used in fabrication shall be free from kinks, sharp
bends, and other conditions that could be deleterious to the finished product. Manufacturing
processes shall not reduce the strength of the steel to a value less than intended by the design.
Manufacturing processes shall be done neatly and accurately. All bends shall be made by
controlled means to insure uniformity of size and shape.
3.11.2 Bolted connections. Bolt holes shall be accurately punched or drilled and shall
have the burrs removed. Washers or lock washers shall be provided in accordance with good
commercial practice, and all bolts, nuts, and screws shall be tight.
3.11.3 Riveted connections. Rivet holes shall be accurately punched or drilled and shall
have the burrs removed. Rivets shall be driven with pressure tools and shall completely fill the
holes. Rivet heads, when not countersunk or flattened, shall be of approved shape and of
uniform size for the same diameter of the rivet. Rivet heads shall be full, neatly made, concentric
with the rivet holes, and in full contact with the surface of the member.
3.11.4 Welding. Welding procedures shall be in accordance with a nationally recognized
welding code. The surface of parts to be welded shall be free from rust, scale, paint, grease, or
other foreign matter. Welds shall be of sufficient size and shape to develop the full strength of
the parts connected by the welds. Welds shall transmit stress without permanent deformation or
failure when the parts connected by the weld are subjected to proof and service loadings.
3.11.5 Castings. All castings shall be sound and free from patching, misplaced coring,
warping, or any other defect that may reduce the casting's ability to perform its intended function.
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are
classified as follows:
a. First article inspection (see 4.2).
b. Conformance inspection (see 4.3).
4.2 First article inspection. The first article inspection shall be performed on one sprayer
when a first article is required (see 3.2 and 6.2). This inspection shall include the examination of
production item from the supplier's current inventory provided the item meets the requirements
of the specification and is representative of the design, construction, and manufacturing
technique applicable to the remaining items to be furnished under the contract.
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