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 5996-01-181-5438
NSN 6105-00-220-2737
NSN 5920-01-296-1647
NSN 6620-00-740-3699
NSN 5855-01-393-2455
NSN 4140-00-924-8116
NSN 6110-01-450-3270
NSN 5945-01-074-3045
NSN 7035-01-487-4314
NSN 5920-00-665-3973
NSN 5920-01-263-7012
NSN 5965-01-360-0454