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 6645-00-456-7653
NSN 5996-01-210-5537
NSN 5895-00-518-1593
NSN 5855-01-533-7051
NSN 2925-00-284-1534
NSN 5999-01-113-0024
NSN 5960-01-412-9474
NSN 2925-01-422-1542
NSN 6130-01-498-5268
NSN 5905-01-522-6526
NSN 5920-01-216-1981
NSN 6220-00-607-5961