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 5960-01-469-7484
NSN 5996-01-519-3330
NSN 5925-01-628-9428
NSN 5945-01-308-6429
NSN 6645-00-079-1430
NSN 6610-01-603-0703
NSN 6130-00-618-0175
NSN 5920-01-549-9647
NSN 6620-00-033-3280
NSN 6150-01-062-0853
NSN 6130-01-106-9892
NSN 6645-00-819-5045