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 6220-00-235-3565
NSN 6240-01-370-5242
NSN 5930-01-448-3578
NSN 6105-01-232-5262
NSN 5925-01-186-7117
NSN 5998-01-619-6163
NSN 5925-01-339-6540
NSN 6220-01-197-0486
NSN 6685-01-362-5308
NSN 5895-01-294-5761
NSN 5935-01-012-3082
NSN 5915-01-367-6207