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 5855-01-584-3972
NSN 6610-01-487-4626
NSN 5999-00-118-7473
NSN 5996-01-422-7365
NSN 6320-01-578-6006
NSN 5945-00-166-9941
NSN 6610-01-044-9351
NSN 6105-01-289-9967
NSN 5910-01-354-4686
NSN 5998-00-906-7379
NSN 6240-01-522-0875
NSN 6105-01-479-8988