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 5920-00-734-5519
NSN 6610-00-073-8038
NSN 5905-01-168-0747
NSN 5996-00-155-9309
NSN 6145-01-422-0806
NSN 5985-01-100-1206
NSN 5905-00-142-2488
NSN 5905-00-708-0891
NSN 6150-01-651-4947
NSN 5996-00-901-8349
NSN 5915-01-335-5142
NSN 5945-01-602-9354