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 5999-01-495-8023
NSN 5935-00-361-9546
NSN 5990-01-381-9526
NSN 5965-01-347-7328
NSN 6130-00-116-8170
NSN 5950-01-279-8375
NSN 5950-01-173-6317
NSN 6110-01-419-4951
NSN 6320-00-925-0558
NSN 6150-00-426-6837
NSN 5920-01-034-1541
NSN 5960-00-678-5939