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 6105-00-377-8206
NSN 2925-01-266-5229
NSN 5975-00-285-0454
NSN 6610-00-065-8885
NSN 5990-00-186-2445
NSN 5985-01-124-0072
NSN 6645-00-173-2800
NSN 6650-01-451-8461
NSN 5905-00-133-3507
NSN 6620-00-904-2139
NSN 5930-00-866-3223
NSN 6620-01-262-9489