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 6645-01-061-5516
NSN 6240-01-023-2013
NSN 6610-01-360-3564
NSN 6105-01-054-3649
NSN 6240-01-517-2994
NSN 5855-01-383-6860
NSN 5925-00-336-9150
NSN 5945-00-186-5069
NSN 6650-01-014-5990
NSN 5910-01-467-6340
NSN 5835-01-102-4451
NSN 6130-01-502-9155