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 6110-00-699-1495
NSN 6645-01-485-3517
NSN 6150-01-519-9309
NSN 5895-01-242-8097
NSN 6620-00-970-2363
NSN 6105-00-210-0355
NSN 6645-01-214-4550
NSN 5998-00-218-1360
NSN 6240-00-008-5263
NSN 6685-00-194-9803
NSN 5996-01-633-7979
NSN 7035-00-968-4848