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 5925-01-062-7973
NSN 6685-01-289-3710
NSN 5999-01-305-1835
NSN 5910-00-244-4209
NSN 5945-01-476-8873
NSN 7035-00-063-5245
NSN 4140-01-305-6934
NSN 6150-01-369-6854
NSN 5935-00-985-1311
NSN 6130-01-025-1253
NSN 5945-00-237-9881
NSN 6610-00-064-5514