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 6130-00-061-7486
NSN 2925-00-246-3077
NSN 6105-01-012-4176
NSN 6620-01-067-8336
NSN 5855-01-512-1926
NSN 5960-01-148-6908
NSN 5965-01-234-6844
NSN 6240-00-421-5368
NSN 5910-00-949-1214
NSN 6645-00-140-5173
NSN 5925-01-052-1207
NSN 7035-01-366-5912