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 5985-00-816-8486
NSN 6150-00-431-6228
NSN 5945-01-053-4331
NSN 5835-00-901-4932
NSN 5930-01-077-1083
NSN 5930-01-068-3641
NSN 6150-01-561-5384
NSN 6150-01-068-4307
NSN 5920-01-493-3273
NSN 5855-00-179-8588
NSN 5895-00-924-6630
NSN 5895-00-773-2926