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 5998-01-566-0154
NSN 2925-01-412-9520
NSN 6320-01-406-6098
NSN 6240-01-128-2476
NSN 6320-01-185-3857
NSN 5930-00-026-1665
NSN 6135-01-556-3352
NSN 6130-01-419-3535
NSN 2925-01-359-4027
NSN 5835-01-436-6549
NSN 5855-01-240-5470
NSN 5965-01-258-5662