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).
Dept. of the Navy 
Thailand 
Greece 
Turkey NSN 7035-01-595-5270
NSN 5935-01-148-0349
NSN 5835-01-424-0054
NSN 5835-01-468-6170
NSN 6610-01-152-2821
NSN 6150-01-301-0425
NSN 6320-00-931-4855
NSN 5855-01-647-8382
NSN 6240-01-383-7448
NSN 5895-01-114-4423
NSN 6150-01-131-2875
NSN 2925-01-218-5556