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 7035-01-658-7874
NSN 5965-01-253-8699
NSN 5945-01-198-1523
NSN 6220-01-615-0905
NSN 5835-01-283-9691
NSN 5895-00-801-3959
NSN 5960-01-513-3230
NSN 6320-01-564-0893
NSN 2925-01-391-9247
NSN 6220-01-025-4535
NSN 6130-00-234-2954
NSN 5990-00-253-6694