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 5985-01-500-0880
NSN 5910-00-857-7563
NSN 6145-00-881-8177
NSN 5855-01-351-2541
NSN 6610-00-003-3958
NSN 5910-01-009-6378
NSN 5935-01-365-7452
NSN 6645-01-629-0847
NSN 6650-01-433-3520
NSN 6150-01-581-0680
NSN 5996-00-067-7624
NSN 6220-01-514-7024