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 7035-01-553-1460
NSN 5935-01-446-9071
NSN 6105-00-079-6436
NSN 6240-00-606-5241
NSN 6105-01-628-3534
NSN 5920-00-081-5958
NSN 6145-01-063-8566
NSN 5910-01-493-5987
NSN 6650-01-045-5494
NSN 5895-01-466-5274
NSN 5910-00-878-0596
NSN 5895-01-104-9611