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 7035-01-075-8646
NSN 5920-00-152-4003
NSN 5960-00-539-7914
NSN 5915-01-589-8341
NSN 5930-00-701-5331
NSN 6130-01-410-7551
NSN 6135-01-351-2690
NSN 5905-00-903-3462
NSN 6620-01-523-7245
NSN 5999-01-492-5475
NSN 6645-00-904-2754
NSN 5985-01-080-9292