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 5960-00-496-1286
NSN 6145-01-021-4671
NSN 5835-00-289-9080
NSN 5975-01-355-1598
NSN 5895-01-281-5040
NSN 6130-01-432-2415
NSN 7035-01-543-0236
NSN 5985-00-128-3827
NSN 6685-00-155-4301
NSN 5835-00-404-6149
NSN 6130-01-316-4791
NSN 6130-00-844-2792