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 5835-01-464-7038
NSN 7035-01-145-5059
NSN 5855-01-213-9076
NSN 6650-01-450-6335
NSN 6130-01-322-6420
NSN 6130-00-821-3500
NSN 6145-01-587-2371
NSN 5975-01-660-3937
NSN 6620-01-575-9561
NSN 6105-01-543-2893
NSN 6150-01-077-1100
NSN 5920-01-449-7565