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 5999-00-116-2776
NSN 6130-01-361-1285
NSN 6110-00-239-9248
NSN 5985-01-461-3763
NSN 6645-00-919-8902
NSN 5945-01-518-8117
NSN 5855-01-444-5248
NSN 6150-00-270-1001
NSN 6320-01-355-3998
NSN 5999-01-330-3045
NSN 6610-00-086-8036
NSN 5945-01-263-1712