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 6220-01-242-9901
NSN 5855-00-149-0766
NSN 7035-00-179-3924
NSN 2925-01-087-4184
NSN 6110-01-443-8950
NSN 5965-00-253-1302
NSN 5905-01-322-0807
NSN 5855-01-169-1706
NSN 5910-01-277-0742
NSN 5915-00-835-3916
NSN 6610-01-607-8892
NSN 5996-00-167-4736