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 6110-01-331-1878
NSN 6135-00-299-6918
NSN 6610-01-468-0679
NSN 6240-00-689-5659
NSN 5965-01-086-5692
NSN 6105-00-501-7681
NSN 6685-01-594-6298
NSN 5945-00-880-8351
NSN 5910-00-238-3698
NSN 5960-01-412-0619
NSN 6610-00-886-3652
NSN 5855-00-466-2309