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 5930-01-088-8325
NSN 6685-01-287-9974
NSN 6620-01-502-5083
NSN 5935-01-104-4740
NSN 6110-01-087-0439
NSN 4140-00-519-2781
NSN 5910-00-925-2412
NSN 6620-01-096-3723
NSN 6135-01-299-0778
NSN 6135-01-260-7180
NSN 5910-01-462-1205
NSN 5835-00-165-3069