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 5996-01-421-3373
NSN 6130-01-099-3411
NSN 6220-00-488-2152
NSN 6130-01-526-3419
NSN 5990-00-081-1266
NSN 6320-00-032-4853
NSN 5895-01-421-4160
NSN 5925-01-547-2553
NSN 6105-01-105-0042
NSN 6130-00-973-1750
NSN 7035-01-107-2811
NSN 6105-01-415-5973