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 5930-01-293-3542
NSN 6130-01-481-1193
NSN 5935-01-555-1098
NSN 6135-00-191-6444
NSN 5985-00-468-1360
NSN 6320-01-380-7372
NSN 6130-01-214-0366
NSN 5965-01-315-5764
NSN 5910-00-954-0519
NSN 6130-01-062-1640
NSN 4140-01-294-8941
NSN 6105-01-655-6488