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 5950-00-299-7851
NSN 5835-00-233-6327
NSN 5920-00-115-2420
NSN 5895-01-353-6342
NSN 5990-01-534-8609
NSN 5930-01-607-0545
NSN 6105-00-630-9741
NSN 5910-01-164-1527
NSN 5998-01-255-1567
NSN 6110-00-544-9521
NSN 6110-01-195-5342
NSN 5985-01-493-6875