All surfaces must be free of burrs longitudinal and spiral tool markds, od threads must be perfect, break all sharp edges
A cylindrical item which may have wrenching and/or driving facilities and/or shoulders. It is designed to be inserted in a drilled or a pretapped hole, or molded or pressed into soft material to reduce the size of a tapped hole; to provide threads; to add strength, and/or to prevent stripping. It is one of the following: (1) a one-piece, flanged or unflanged, internally threaded item which may have external threads, and/or serrations around the periphery of the collar, designed to engage a serrated lock ring which is not included with the item; (2) a one-piece precision coiled wire; (3) a two-piece item consisting of an internally threaded cylinder and a mating externally threaded part; or (4) a one-piece internally threaded item whose outside diameter is tapered and/or knurled and/or with fin(s). The internal thread of the item may have a locking feature. Excludes items having a sleeve on its underportion which can be clinched or crimped. Excludes bushing, machine thread; nut, plain, knurled; nut, plain, round; nut, plain, clinch and nut, self-locking, clinch. See also nut, plain, plate.
Classification: Press-fasteners, snap-fasteners & press-studs & parts therefor
NSN 6150-00-239-2651
NSN 5945-01-634-0588
NSN 6105-01-160-5533
NSN 5905-00-930-2276
NSN 5855-00-548-4742
NSN 5855-00-197-6387
NSN 6220-00-067-7645
NSN 5998-01-551-1011
NSN 6130-00-849-5255
NSN 5905-00-395-0282
NSN 5985-01-204-9040
NSN 6650-00-123-9137