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 4140-01-589-1092
NSN 6145-00-296-0085
NSN 5835-00-918-8169
NSN 6145-00-269-4271
NSN 5975-01-432-7267
NSN 6610-01-447-2560
NSN 5905-01-102-7747
NSN 6610-01-029-8749
NSN 6105-01-279-3267
NSN 5998-01-342-6862
NSN 5960-00-831-8683
NSN 6105-01-414-7100