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 5895-00-795-0522
NSN 5945-01-145-5488
NSN 6220-01-517-2365
NSN 2925-01-149-0352
NSN 5960-00-140-9583
NSN 5960-01-579-9493
NSN 6150-01-393-5492
NSN 7035-01-572-9365
NSN 5945-01-551-1250
NSN 6130-01-071-2820
NSN 5945-00-100-1261
NSN 5835-00-238-1516