A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The overall length must exceed 25 percent of the outside diameter or distance across peripheral flats of the body. (when the length, outside diameter, and/or distance across peripheral flats are designed as a tolerance, the maximum dimension will be used to determine compliance). For items having other than a round or hexagon peripheral shape, see spacer, plate. Excludes items with lubricating features, see bearing, sleeve and bushing, sleeve. See also bushing, tapered; spacer, ring; washer, flat; and washer, (as modified).
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 6620-01-608-2682
NSN 6240-01-396-4233
NSN 4140-01-515-1121
NSN 6105-01-496-8659
NSN 5895-01-012-0930
NSN 5910-01-325-8391
NSN 5985-01-600-1583
NSN 5960-00-518-3091
NSN 4140-01-391-4074
NSN 5915-01-197-1857
NSN 5998-01-200-5556
NSN 5990-01-433-3786