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 5925-01-419-7926
NSN 6645-00-806-6961
NSN 5965-01-117-7681
NSN 5999-00-580-1876
NSN 6150-01-032-2916
NSN 7035-01-176-7523
NSN 5935-01-582-7777
NSN 5915-01-199-5605
NSN 5960-01-495-0859
NSN 6130-01-448-2086
NSN 6130-00-679-0077
NSN 6620-00-451-1460