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 5915-01-414-8607
NSN 5855-00-885-8452
NSN 6150-01-278-7862
NSN 6650-01-062-8105
NSN 5950-00-798-3905
NSN 6130-00-522-3609
NSN 7035-00-421-8710
NSN 6650-00-590-9073
NSN 5960-01-332-9695
NSN 6610-00-445-5695
NSN 6105-00-303-6802
NSN 5920-00-276-8657