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 7035-00-703-3535
NSN 5985-00-332-8758
NSN 4140-01-571-7913
NSN 5999-00-734-8221
NSN 5990-01-132-4156
NSN 5930-00-975-8012
NSN 5925-01-024-9568
NSN 5895-01-534-2506
NSN 6220-01-371-7456
NSN 6130-01-605-7702
NSN 6105-00-235-7982
NSN 6110-00-361-4081