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 6130-01-634-0603
NSN 5960-01-119-4609
NSN 6110-00-429-4777
NSN 5935-01-353-8690
NSN 5895-01-114-9923
NSN 6645-00-752-2939
NSN 6110-00-009-9334
NSN 5855-01-027-3639
NSN 5895-01-420-6926
NSN 4140-00-302-9534
NSN 6685-01-518-0959
NSN 5905-00-468-0570