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 6130-01-605-3558
NSN 5975-01-235-5449
NSN 7035-01-613-7564
NSN 6130-01-167-4510
NSN 6220-01-160-7247
NSN 4140-01-617-5918
NSN 6645-01-182-4896
NSN 5990-01-516-9665
NSN 5998-01-659-0809
NSN 6145-01-146-5555
NSN 5990-00-146-3534
NSN 5965-00-058-6751