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 5910-00-149-1589
NSN 5925-01-198-9910
NSN 5910-00-249-4981
NSN 7035-00-281-4082
NSN 5895-00-786-2210
NSN 5895-01-441-1334
NSN 6650-01-024-9554
NSN 5975-00-928-6046
NSN 5996-00-113-7341
NSN 2925-01-012-3162
NSN 5950-01-238-7647
NSN 6220-01-182-0426