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 6610-00-486-5343
NSN 6610-00-007-5246
NSN 5935-01-294-9613
NSN 6610-01-381-8898
NSN 5975-01-103-9892
NSN 5960-00-368-4084
NSN 6645-01-273-2462
NSN 6130-00-402-2179
NSN 6105-00-516-2151
NSN 6320-01-215-2284
NSN 5930-01-502-9135
NSN 6685-01-283-6938