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 5920-00-533-8024
NSN 6320-00-225-7013
NSN 6135-01-518-9813
NSN 6110-00-182-8664
NSN 5920-01-565-3938
NSN 6645-01-249-9237
NSN 6135-00-702-2772
NSN 5925-01-463-0305
NSN 6220-01-401-5337
NSN 5975-00-166-0614
NSN 5945-01-234-4765
NSN 5960-00-602-9906