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 6105-01-597-1078
NSN 5930-01-385-0205
NSN 6650-01-484-9505
NSN 5965-01-387-3875
NSN 5915-01-644-8760
NSN 5915-01-629-9897
NSN 6110-01-190-8487
NSN 5950-00-882-1644
NSN 5990-01-630-5094
NSN 4140-01-004-0566
NSN 5960-01-014-1595
NSN 5895-00-387-4901