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 6685-00-846-1875
NSN 5920-01-603-0985
NSN 5915-00-099-0347
NSN 6135-01-546-4588
NSN 6105-00-725-9222
NSN 6220-01-326-2318
NSN 6620-00-104-9722
NSN 5950-01-316-4022
NSN 5945-01-369-4498
NSN 6130-00-913-7091
NSN 6110-01-492-9422
NSN 5925-01-324-6032