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 6320-01-205-8399
NSN 6610-01-272-8625
NSN 6105-00-458-2987
NSN 5920-00-869-6403
NSN 6150-00-186-7809
NSN 6105-01-340-0710
NSN 5855-00-455-6070
NSN 5895-00-327-8805
NSN 6650-00-316-4889
NSN 5985-00-689-9515
NSN 5945-01-591-4491
NSN 6130-00-320-3363