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 6135-00-767-0331
NSN 5925-01-406-2879
NSN 5925-01-006-3311
NSN 5855-01-587-7608
NSN 6220-00-827-0227
NSN 6110-01-246-2673
NSN 6320-01-532-7491
NSN 2925-00-179-7143
NSN 6650-00-518-2962
NSN 5855-01-504-6080
NSN 6150-01-514-0095
NSN 5905-01-272-2274