Hexagon peripheral shape 0.250 in. Across 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 5930-00-070-4337
NSN 5930-01-320-7885
NSN 6150-01-432-5435
NSN 6150-01-303-1353
NSN 6130-01-574-0949
NSN 6650-00-390-3568
NSN 5855-01-188-4049
NSN 5990-01-013-8464
NSN 5835-01-497-5029
NSN 6650-00-035-9297
NSN 6610-00-022-5739
NSN 5905-00-020-5687