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 6320-01-195-5583
NSN 5835-01-105-6545
NSN 6240-01-343-3022
NSN 6650-01-452-5379
NSN 5895-01-344-2365
NSN 5945-01-430-4328
NSN 5996-01-363-9606
NSN 5925-01-013-5046
NSN 5935-00-082-0996
NSN 6130-01-130-8891
NSN 5855-01-098-9038
NSN 6110-01-496-9979