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 5965-01-495-6455
NSN 5985-01-310-3121
NSN 6610-01-414-7481
NSN 5895-01-228-0453
NSN 6645-01-282-9974
NSN 6135-00-422-3967
NSN 5835-00-572-7445
NSN 5960-01-304-7178
NSN 6620-00-165-1749
NSN 6650-01-525-0958
NSN 5855-01-057-7818
NSN 6110-01-426-3347