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 5895-01-089-6822
NSN 5925-00-970-7364
NSN 6130-00-123-7959
NSN 5895-00-933-7307
NSN 5985-01-035-5245
NSN 5960-01-530-0581
NSN 6240-01-642-3740
NSN 5855-01-035-2866
NSN 5998-01-422-9779
NSN 6650-00-775-6560
NSN 5835-01-463-2334
NSN 5935-01-344-4410