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 6110-00-446-6099
NSN 7035-01-385-7306
NSN 5965-01-263-8601
NSN 6135-01-534-3007
NSN 6320-00-186-6452
NSN 7035-00-585-2113
NSN 6220-01-381-1074
NSN 2925-00-947-9814
NSN 6220-00-446-8942
NSN 5925-00-081-9135
NSN 5998-01-359-4430
NSN 6650-01-588-4687