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 5910-01-649-8075
NSN 5990-00-924-8024
NSN 6135-01-394-8087
NSN 5915-00-376-9388
NSN 5985-01-476-8978
NSN 6130-01-245-9226
NSN 5975-01-167-7952
NSN 6220-01-603-3149
NSN 6105-00-445-3478
NSN 5835-01-224-0406
NSN 5965-01-024-7960
NSN 5835-00-005-7909