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 7035-01-399-5354
NSN 7035-01-041-2754
NSN 6610-00-149-1534
NSN 6110-01-058-2476
NSN 5895-00-354-1614
NSN 5999-01-366-6961
NSN 6110-01-276-2120
NSN 6150-01-062-0853
NSN 5990-01-264-9759
NSN 5985-00-225-8924
NSN 6110-01-417-2990
NSN 5835-00-880-6477