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 5960-01-648-1872
NSN 6320-01-386-3491
NSN 6130-00-350-1512
NSN 6130-01-317-7124
NSN 6645-00-542-1206
NSN 5950-01-364-1139
NSN 5855-01-156-0417
NSN 6645-01-075-7722
NSN 5996-01-330-6047
NSN 5855-01-462-8520
NSN 5895-01-436-3697
NSN 5905-00-593-8074