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 5999-01-344-2341
NSN 5855-01-590-2723
NSN 5999-00-266-3805
NSN 6105-00-683-5459
NSN 6645-00-960-6594
NSN 5925-01-055-9223
NSN 6645-01-030-5288
NSN 5915-01-406-3847
NSN 5999-00-131-4506
NSN 6620-01-125-8904
NSN 5915-01-367-2056
NSN 5996-00-070-0893