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 5996-00-059-7061
NSN 5915-01-187-0728
NSN 6135-00-405-1989
NSN 2925-01-115-0306
NSN 5965-01-276-9586
NSN 5965-01-099-8745
NSN 5985-01-071-6430
NSN 5935-01-462-6443
NSN 5855-00-610-4052
NSN 6610-00-138-5898
NSN 6240-01-422-6916
NSN 6620-01-386-5543