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 7035-01-194-6332
NSN 5996-01-149-5506
NSN 7035-01-547-6846
NSN 5935-01-099-4991
NSN 5985-01-530-9369
NSN 6145-01-157-3488
NSN 5960-01-424-0590
NSN 5905-01-316-9512
NSN 5920-01-129-9638
NSN 5950-01-171-3710
NSN 6135-01-537-1234
NSN 5935-00-925-6317