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 5835-00-946-2656
NSN 6610-01-338-6272
NSN 6650-00-826-7396
NSN 4140-01-555-0876
NSN 5998-00-014-1732
NSN 6650-01-421-4024
NSN 5925-00-684-6468
NSN 6650-01-330-6740
NSN 5855-00-198-3197
NSN 5895-01-582-7269
NSN 5930-01-280-5466
NSN 6145-00-959-4489