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 6620-00-635-7347
NSN 5945-01-364-8496
NSN 7035-00-794-0792
NSN 5935-01-272-9592
NSN 5965-01-250-3214
NSN 6130-01-132-3756
NSN 6110-01-453-9302
NSN 6105-00-117-3966
NSN 5975-00-810-7632
NSN 5915-00-383-1471
NSN 6150-01-464-2858
NSN 6240-00-446-7796