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.
Dept. of the Army 
Dept. of the Air Force 
U.s. Marine Corps 
Dept. of the Navy 
Poland 
Spain 
Singapore 
Malaysia 
Australia 
Canada 
New Zealand 
Germany 
Republic of Korea 
United Kingdom 
Netherlands 
Italy 
Norway 
Greece 
Turkey Classification: Press-fasteners, snap-fasteners & press-studs & parts therefor
NSN 5930-00-857-8809
NSN 6130-01-651-7710
NSN 5998-01-641-4933
NSN 6105-01-422-0510
NSN 6220-01-168-7773
NSN 6105-01-374-3445
NSN 7035-01-438-2108
NSN 5998-01-164-6833
NSN 5975-00-636-4910
NSN 5975-00-503-4697
NSN 5985-00-809-9933
NSN 5985-01-622-1629