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 7035-00-541-8516
NSN 6105-01-382-1677
NSN 5925-01-323-7756
NSN 5855-01-648-2674
NSN 5998-00-253-4990
NSN 5975-01-429-1232
NSN 5999-01-464-2945
NSN 6610-01-130-0744
NSN 5985-01-159-4569
NSN 6320-01-388-3125
NSN 5998-00-800-6769
NSN 5960-01-308-2474