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 5975-01-447-0041
NSN 5975-00-810-8782
NSN 5975-01-022-5128
NSN 5999-01-605-1024
NSN 5935-01-095-6564
NSN 6150-00-826-1351
NSN 6240-00-454-9293
NSN 5985-00-035-4558
NSN 6650-01-388-3387
NSN 6240-01-628-9240
NSN 5965-01-454-8076
NSN 4140-01-252-2534