Gray anodize or blue chromate
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: Articles of aluminum nesoi
NSN 5975-01-585-2422
NSN 5985-01-013-9448
NSN 6150-01-400-4211
NSN 6610-00-292-9895
NSN 5905-01-550-8466
NSN 6145-00-959-0097
NSN 6130-01-023-0501
NSN 6145-01-544-5786
NSN 5975-01-427-3521
NSN 6105-01-381-1088
NSN 5985-00-225-8621
NSN 5990-01-485-0260