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 5965-01-462-2291
NSN 5925-01-174-0335
NSN 5960-01-158-9166
NSN 6645-01-062-0905
NSN 5996-01-602-5655
NSN 7035-01-135-0050
NSN 5996-01-541-8989
NSN 5960-01-109-4828
NSN 5999-01-598-6472
NSN 5910-01-458-5603
NSN 5930-01-032-4502
NSN 2925-01-607-7754