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 5985-00-015-3657
NSN 6105-00-507-9762
NSN 7035-01-386-5722
NSN 6610-01-516-5120
NSN 5920-01-386-5798
NSN 5895-01-502-4386
NSN 6110-01-349-8680
NSN 6105-01-587-8522
NSN 5930-00-209-1076
NSN 5895-00-311-8969
NSN 6150-01-049-3437
NSN 6645-01-089-6459