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 6320-00-823-2015
NSN 5895-01-449-5126
NSN 6685-01-199-5911
NSN 6685-01-008-1893
NSN 6650-00-726-4242
NSN 6650-00-575-7487
NSN 6620-00-901-4523
NSN 5925-00-186-8669
NSN 5960-00-723-2793
NSN 6130-01-513-5432
NSN 5920-00-421-6447
NSN 5985-01-055-6084