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 5975-01-622-7698
NSN 6105-00-116-1249
NSN 6145-01-169-0759
NSN 6320-00-036-3688
NSN 5930-00-081-7956
NSN 6320-01-378-6191
NSN 6130-00-369-6637
NSN 5930-01-652-9034
NSN 5999-01-062-8798
NSN 6145-01-462-4452
NSN 5965-01-260-5584
NSN 5925-01-572-7269