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 6130-01-277-9050
NSN 2925-00-808-5077
NSN 5996-01-546-8404
NSN 2925-01-508-4138
NSN 5960-00-387-6377
NSN 5910-00-239-0697
NSN 6110-00-088-8269
NSN 5975-01-027-2157
NSN 6145-01-024-4269
NSN 7035-01-322-8180
NSN 5895-01-528-8251
NSN 7035-01-444-4240