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 5855-01-656-6808
NSN 5910-01-418-7621
NSN 5910-00-724-5785
NSN 5965-00-910-3233
NSN 6150-01-557-2715
NSN 5925-01-023-2996
NSN 5895-00-596-8678
NSN 5910-01-495-7382
NSN 6650-01-656-9398
NSN 5985-01-532-7205
NSN 5910-01-517-2220
NSN 6685-01-075-3732