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: Hard rubber (for example, ebonite) in all forms, including waste and scrap; articles of hard rubber
NSN 4140-01-270-6246
NSN 4140-01-475-8930
NSN 6620-00-827-1611
NSN 5950-00-268-3292
NSN 5945-00-083-6778
NSN 6650-01-370-3919
NSN 5925-00-361-8836
NSN 5855-00-288-1408
NSN 6135-00-444-1402
NSN 5985-01-188-6464
NSN 5895-01-578-5697
NSN 6685-01-143-1348