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 5895-00-352-8734
NSN 5935-01-312-0580
NSN 5996-00-932-5301
NSN 7035-01-459-7545
NSN 6105-01-130-0821
NSN 5985-01-165-7466
NSN 5960-01-624-1170
NSN 5960-01-056-4982
NSN 6610-01-010-3159
NSN 6150-01-616-8863
NSN 5998-00-927-5509
NSN 5855-01-334-6594