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 6130-00-826-8284
NSN 5910-01-630-1885
NSN 5945-00-528-1920
NSN 6135-00-299-6918
NSN 5925-00-054-0616
NSN 6645-01-582-0201
NSN 7035-01-510-8787
NSN 5960-00-687-1031
NSN 7035-00-054-3414
NSN 6130-01-165-1127
NSN 6650-00-177-6390
NSN 2925-00-139-8309