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 5985-00-204-0028
NSN 5920-01-360-4654
NSN 5985-01-439-9523
NSN 5930-01-218-2368
NSN 6150-01-145-0396
NSN 6645-01-459-9586
NSN 5935-00-111-7268
NSN 5965-00-698-0433
NSN 5965-01-658-5780
NSN 6105-01-030-7979
NSN 2925-01-454-2046
NSN 6150-00-819-0026