0.250 in. Width across the flats
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 5985-01-501-7702
NSN 2925-01-325-3974
NSN 5925-00-397-8258
NSN 5855-00-151-3853
NSN 2925-01-424-0235
NSN 5930-00-245-5665
NSN 6320-01-317-3663
NSN 6645-00-634-9317
NSN 6145-01-066-6806
NSN 5975-00-411-4186
NSN 5930-01-456-1857
NSN 6105-00-862-8374