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 5910-00-023-7489
NSN 7035-00-803-3056
NSN 5999-00-639-3447
NSN 5920-00-948-9071
NSN 6150-01-496-7869
NSN 5925-01-136-9730
NSN 5920-01-180-8307
NSN 5835-01-281-7281
NSN 5920-01-297-0800
NSN 5915-01-533-9905
NSN 6645-01-242-9699
NSN 6645-00-542-1206