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 6150-00-023-4968
NSN 6320-00-564-2772
NSN 6240-01-622-3020
NSN 5998-00-110-9901
NSN 6320-01-150-5378
NSN 6130-01-508-4360
NSN 7035-01-334-5855
NSN 6610-00-681-0590
NSN 6130-01-562-2106
NSN 6320-00-108-7049
NSN 5960-00-701-8136
NSN 6610-01-604-1744