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 5998-01-051-0530
NSN 5895-01-297-4424
NSN 5835-01-370-8912
NSN 5930-01-039-2939
NSN 6105-01-634-0322
NSN 5985-01-456-1244
NSN 6645-01-203-7398
NSN 6130-01-006-1722
NSN 5985-00-659-9509
NSN 5990-00-336-2054
NSN 6320-01-411-6610
NSN 5855-01-167-2162