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 5835-01-394-7589
NSN 5895-00-688-2671
NSN 4140-00-954-4695
NSN 5999-01-250-2623
NSN 6610-00-888-4863
NSN 6110-01-572-6645
NSN 5905-01-276-9973
NSN 5945-01-634-0588
NSN 5975-00-472-6042
NSN 5965-01-463-2815
NSN 5985-01-258-1049
NSN 5895-01-233-2920