Staggered coils' grip location
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 
Defense Threat Reduction Agency 
U.s. Marine Corps 
Dept. of the Navy 
U.s. Coast Guard 
National Aeronautics and Space Administration 
Poland 
Brazil 
Spain 
Singapore 
Morocco 
Australia 
Belgium 
Canada 
France 
Germany 
Republic of Korea 
United Kingdom 
Netherlands 
Portugal 
Norway 
Greece 
Turkey 
NATO Maintenance and Supply Agency Classification: Press-fasteners, snap-fasteners & press-studs & parts therefor
NSN 5960-01-350-5332
NSN 6610-01-020-0586
NSN 6220-01-622-2702
NSN 5999-01-440-4037
NSN 5855-01-154-3871
NSN 5935-00-493-3764
NSN 5965-01-390-3989
NSN 5960-01-222-0074
NSN 5999-01-330-3045
NSN 5965-01-036-1325
NSN 5930-00-073-2244
NSN 6320-00-322-3460