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 7035-01-618-1438
NSN 5985-00-648-2081
NSN 5920-01-558-5781
NSN 5999-00-069-4999
NSN 6105-01-528-6793
NSN 6645-01-278-6973
NSN 5998-00-682-5115
NSN 7035-01-209-0045
NSN 5975-01-227-2722
NSN 5895-00-239-3841
NSN 6320-01-585-8468
NSN 5945-01-289-3705