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 5965-00-236-0016
NSN 6110-00-779-0648
NSN 7035-01-655-8893
NSN 6650-00-077-0638
NSN 6145-00-881-9544
NSN 6240-00-919-9186
NSN 6150-01-413-9855
NSN 5985-00-615-5973
NSN 6650-00-507-9525
NSN 5960-00-837-2411
NSN 6110-01-616-9520
NSN 5960-00-241-2911