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 5910-00-636-4697
NSN 5945-01-085-7031
NSN 5950-00-626-7739
NSN 5985-01-631-0252
NSN 6645-00-068-0945
NSN 5930-01-020-5318
NSN 5975-01-332-7833
NSN 5930-01-618-2188
NSN 5835-00-698-9824
NSN 5935-01-502-8621
NSN 6620-00-858-7317
NSN 5915-01-462-5900