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 5905-01-179-3345
NSN 4140-01-472-7598
NSN 6650-00-035-9297
NSN 6620-00-199-8734
NSN 6130-01-015-7669
NSN 5985-01-111-6788
NSN 5999-01-578-6827
NSN 4140-01-448-8507
NSN 5998-01-042-0337
NSN 5905-01-586-8155
NSN 5835-01-581-9433
NSN 5895-01-254-2749