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 6105-00-026-8026
NSN 5930-01-360-6009
NSN 6650-01-630-3410
NSN 5975-01-469-7605
NSN 5855-01-293-1592
NSN 6110-01-415-0589
NSN 6110-01-279-1992
NSN 5920-01-523-1571
NSN 5910-00-827-1206
NSN 7035-01-024-9511
NSN 5960-00-441-5147
NSN 4140-00-922-8875