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 6650-00-294-0881
NSN 6130-00-737-0459
NSN 5855-01-147-4785
NSN 6645-01-197-9090
NSN 5945-01-589-0181
NSN 6320-01-162-5977
NSN 6130-01-429-0063
NSN 5855-01-364-1005
NSN 6685-01-054-9054
NSN 5975-00-203-6020
NSN 5855-01-511-0995
NSN 5996-00-593-5233