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 6240-00-078-2360
NSN 5855-01-560-4811
NSN 6135-01-380-4396
NSN 6110-01-567-2660
NSN 6645-01-627-6629
NSN 5910-01-149-9853
NSN 6110-00-918-0869
NSN 6145-00-553-8196
NSN 7035-00-206-6123
NSN 5905-00-523-8458
NSN 5985-01-461-3113
NSN 5965-01-012-1065