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 5930-00-942-7244
NSN 6610-00-287-6884
NSN 5915-01-448-8578
NSN 6110-01-371-3049
NSN 6240-01-346-2040
NSN 5945-00-284-3155
NSN 5996-01-337-3516
NSN 2925-01-012-3162
NSN 5960-01-100-0089
NSN 6320-01-495-1244
NSN 6105-00-890-8149
NSN 5999-00-038-7756