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 5905-00-834-9129
NSN 7035-01-007-7181
NSN 5990-01-025-7466
NSN 5905-00-182-8424
NSN 6620-01-513-9674
NSN 5925-01-100-4029
NSN 6105-00-401-8548
NSN 6320-01-347-2638
NSN 5925-01-120-3837
NSN 6645-00-860-3657
NSN 6135-00-461-3590
NSN 7035-01-381-5411