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 5920-01-516-5611
NSN 6645-00-235-4685
NSN 6105-01-030-2473
NSN 6110-01-120-4887
NSN 6620-00-269-5168
NSN 4140-01-443-5866
NSN 5935-00-980-5692
NSN 5835-01-414-3258
NSN 5945-00-433-4057
NSN 7035-01-398-9581
NSN 6610-00-168-2200
NSN 5950-01-387-0715