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 5910-01-144-3106
NSN 5990-01-400-3299
NSN 6110-00-768-7581
NSN 4140-00-501-7833
NSN 6150-01-224-0982
NSN 5935-00-905-6407
NSN 6240-01-510-9299
NSN 6110-00-022-2555
NSN 5920-01-147-5652
NSN 2925-00-167-6762
NSN 5915-00-159-6125
NSN 5975-01-462-5664