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 5910-01-565-9259
NSN 6110-01-083-8317
NSN 5910-01-413-7915
NSN 6110-01-371-3049
NSN 5910-01-212-9281
NSN 6320-00-149-7570
NSN 5930-00-931-5402
NSN 6645-00-936-9111
NSN 6650-01-387-9381
NSN 6650-00-233-0705
NSN 6320-01-443-0974
NSN 5996-01-644-7377