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 5985-00-361-8657
NSN 5905-01-210-6339
NSN 6135-01-442-7275
NSN 6135-00-484-8556
NSN 6145-00-284-1514
NSN 6135-00-073-8939
NSN 6610-01-083-1446
NSN 6130-01-386-3858
NSN 6320-01-072-2073
NSN 6650-01-633-9147
NSN 5915-01-387-7953
NSN 5960-00-453-5281