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 5999-01-534-7592
NSN 7035-01-555-8289
NSN 2925-01-244-3016
NSN 5935-01-275-9303
NSN 5998-00-231-8079
NSN 5950-01-272-8940
NSN 6620-00-679-5830
NSN 7035-01-140-8916
NSN 5996-01-096-2766
NSN 6685-01-456-0130
NSN 6620-00-357-1157
NSN 6150-01-492-2006