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 5960-00-338-9164
NSN 5835-01-442-6079
NSN 7035-01-174-7878
NSN 5930-00-891-6755
NSN 6110-00-234-7064
NSN 5895-01-389-7140
NSN 5985-01-540-2637
NSN 5960-00-816-9040
NSN 6145-01-370-5989
NSN 5915-00-149-1458
NSN 6145-01-313-6778
NSN 5920-00-741-5418