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 5930-00-034-1668
NSN 5895-00-766-9431
NSN 5965-00-452-0967
NSN 6110-00-172-6126
NSN 6110-01-303-5837
NSN 5835-01-659-1364
NSN 6110-01-255-1712
NSN 4140-01-199-3590
NSN 5835-01-616-6131
NSN 5915-01-295-3282
NSN 5985-00-905-6175
NSN 5930-01-322-7059