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 5999-01-203-4652
NSN 7035-00-108-4421
NSN 6110-00-925-4281
NSN 5965-01-222-0166
NSN 5905-01-257-5905
NSN 6150-01-251-8664
NSN 5950-00-827-0884
NSN 6130-01-053-9449
NSN 6150-01-323-6378
NSN 5999-00-450-0089
NSN 5855-00-797-8217
NSN 5999-01-024-9547