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 6110-01-326-3901
NSN 5895-01-462-6022
NSN 5985-00-460-4471
NSN 6145-01-469-4032
NSN 5930-00-228-6987
NSN 6620-01-486-2555
NSN 5925-00-355-6124
NSN 5905-01-397-5606
NSN 6650-01-429-9242
NSN 6105-01-036-0478
NSN 5945-01-020-7897
NSN 5925-01-437-5902