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 5910-01-363-7252
NSN 6105-00-212-8013
NSN 5998-01-462-2509
NSN 7035-00-135-4758
NSN 5905-01-473-7986
NSN 5990-00-532-2641
NSN 5965-01-459-7311
NSN 6105-00-004-6941
NSN 5895-00-917-6730
NSN 7035-01-154-0796
NSN 4140-00-686-4894
NSN 7035-01-435-4009