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 5895-01-572-0321
NSN 6135-01-142-2417
NSN 5998-01-521-3872
NSN 5960-00-246-4623
NSN 5998-01-520-5097
NSN 5945-00-756-0455
NSN 5910-00-195-9020
NSN 5998-01-448-9491
NSN 5965-00-011-3639
NSN 6645-00-274-5670
NSN 5965-01-238-0488
NSN 6135-00-248-4102