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 6105-00-089-3235
NSN 6105-00-880-1268
NSN 5960-01-328-8248
NSN 6220-00-423-6878
NSN 5945-01-586-7448
NSN 5945-01-016-5358
NSN 6650-01-053-8726
NSN 6620-01-605-9660
NSN 5996-00-186-8709
NSN 6685-01-458-4885
NSN 7035-01-088-6415
NSN 5990-01-230-6301