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 6150-01-196-2067
NSN 6610-01-571-2662
NSN 5996-01-079-3651
NSN 6685-01-379-4453
NSN 5975-01-391-1819
NSN 5965-01-214-6225
NSN 5935-01-613-9477
NSN 5920-01-228-4384
NSN 2925-00-118-4887
NSN 5915-01-423-8561
NSN 6610-01-023-1918
NSN 5965-01-464-3372