Outside surface knured
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 5945-01-617-9768
NSN 6610-01-330-4903
NSN 6220-01-150-2096
NSN 5915-01-161-9578
NSN 2925-01-547-4565
NSN 6610-00-166-0233
NSN 6685-01-516-4092
NSN 5910-00-997-5775
NSN 6110-01-221-3124
NSN 5965-01-121-2511
NSN 6610-01-340-1761
NSN 5920-01-401-5315