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 5895-00-192-3854
NSN 6130-01-461-7765
NSN 5945-00-185-6609
NSN 5975-01-602-6419
NSN 5930-01-419-4855
NSN 4140-00-880-5140
NSN 5996-00-403-3753
NSN 6320-00-937-5625
NSN 6110-00-190-7523
NSN 5965-01-197-6924
NSN 5920-00-109-2062
NSN 6650-01-207-0829