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 5910-00-901-4008
NSN 6130-01-583-8785
NSN 5915-01-510-3867
NSN 7035-01-010-8309
NSN 5910-01-386-4231
NSN 6110-00-860-9659
NSN 4140-00-842-0520
NSN 6620-00-575-9230
NSN 7035-01-351-4111
NSN 6320-00-779-5923
NSN 6220-01-299-6790
NSN 7035-01-123-8723