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 6650-01-479-1297
NSN 6650-01-467-8818
NSN 5950-00-891-7642
NSN 5855-01-100-3272
NSN 6620-00-621-6951
NSN 6110-01-400-4207
NSN 6320-01-136-6842
NSN 5930-00-609-4161
NSN 5905-00-596-0322
NSN 5998-01-099-4669
NSN 4140-01-253-0919
NSN 5950-01-009-1329