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 5985-00-949-9550
NSN 5935-01-508-3792
NSN 6130-01-485-9908
NSN 5920-01-430-2530
NSN 5895-00-316-9518
NSN 6110-01-505-7908
NSN 6650-00-279-5741
NSN 6220-01-190-8605
NSN 5910-01-435-6053
NSN 6240-00-607-0828
NSN 5990-00-915-4531
NSN 5905-00-419-3949