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 6150-00-759-3935
NSN 5910-01-514-7309
NSN 6685-01-393-6181
NSN 6110-01-137-0063
NSN 5965-00-686-7067
NSN 6220-01-181-5854
NSN 5910-01-423-8985
NSN 5965-00-823-8623
NSN 7035-01-541-5414
NSN 5960-00-707-3335
NSN 5950-01-049-0104
NSN 5910-00-816-2481