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 6645-00-806-6961
NSN 5935-01-420-8904
NSN 5935-01-057-8874
NSN 6105-01-010-0827
NSN 6150-01-072-1304
NSN 4140-00-413-0877
NSN 6240-01-448-6212
NSN 6240-01-450-4886
NSN 5855-01-529-6369
NSN 6105-01-431-5526
NSN 6110-00-432-9424
NSN 6150-01-469-7665