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 5945-00-636-8139
NSN 5910-01-534-7699
NSN 6150-01-081-7869
NSN 6685-01-027-1168
NSN 7035-00-064-7008
NSN 5920-01-449-8669
NSN 6110-00-442-6830
NSN 5920-01-023-0040
NSN 5975-01-464-8850
NSN 5975-00-269-4365
NSN 6135-00-284-1406
NSN 5965-00-208-4896