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 6105-01-365-5626
NSN 5920-00-171-2347
NSN 5930-01-365-7456
NSN 6105-01-512-4108
NSN 6650-01-575-1044
NSN 5935-01-440-0640
NSN 7035-01-649-6063
NSN 5960-00-707-3335
NSN 5905-00-828-5948
NSN 5855-01-020-7982
NSN 5835-01-049-5290
NSN 5895-00-799-8839