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 6135-00-793-1809
NSN 5915-00-372-4522
NSN 6130-01-462-5927
NSN 5965-00-465-9566
NSN 5990-00-174-6695
NSN 5835-01-250-2939
NSN 6130-01-090-1214
NSN 5935-01-180-1633
NSN 5855-00-610-4052
NSN 5910-01-549-5358
NSN 6130-00-005-8100
NSN 6130-01-376-1625