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 6240-01-442-6456
NSN 6610-01-412-0058
NSN 5998-01-283-7064
NSN 7035-00-055-9778
NSN 5895-01-335-9354
NSN 6620-01-521-9710
NSN 6620-01-467-2111
NSN 5990-00-501-4994
NSN 5915-00-928-7490
NSN 5975-01-632-4976
NSN 5999-01-224-7260
NSN 6645-00-258-8547