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 5935-01-570-8385
NSN 5905-01-125-2657
NSN 6130-01-579-0383
NSN 7035-01-334-5855
NSN 6645-01-281-7254
NSN 5999-01-412-0470
NSN 5855-01-110-9564
NSN 5935-00-515-6967
NSN 5965-01-650-1764
NSN 5910-00-612-8464
NSN 6145-00-496-2020
NSN 6650-00-782-0223