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 5855-00-446-5921
NSN 5855-01-100-3272
NSN 5930-01-486-2164
NSN 6135-01-116-3385
NSN 6220-01-149-8566
NSN 5950-01-132-3519
NSN 5915-01-595-2266
NSN 5935-01-387-3692
NSN 5965-01-500-2468
NSN 5975-01-451-7448
NSN 5985-00-505-2189
NSN 6110-01-628-9974