A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 6110-01-136-3104
NSN 5925-00-655-4345
NSN 6105-01-454-0159
NSN 5905-01-435-0070
NSN 5965-01-389-7058
NSN 6150-00-209-8026
NSN 6135-01-384-7155
NSN 6240-01-552-8831
NSN 5950-01-535-0099
NSN 5950-00-385-1686
NSN 5996-00-205-2933
NSN 2925-01-446-6523