Counterbore in shank 0.374 in. Min and 0.377 in. Max diameter to 0.427 in. Minand 0.442 in. Max dp
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 6645-01-319-0006
NSN 4140-00-960-8222
NSN 5999-01-170-4738
NSN 6135-01-320-4815
NSN 5835-00-092-1136
NSN 6145-01-310-0283
NSN 5965-01-351-6977
NSN 7035-00-703-3535
NSN 6130-01-184-3225
NSN 5999-01-277-2122
NSN 5945-00-708-3583
NSN 6645-01-390-0020