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 5920-01-097-8773
NSN 5925-01-472-4642
NSN 5915-01-449-1294
NSN 6645-01-383-6514
NSN 5950-01-321-1414
NSN 5950-01-597-0087
NSN 5920-00-515-3617
NSN 5996-01-397-2142
NSN 6130-01-231-9245
NSN 5835-01-351-3425
NSN 6105-01-134-3216
NSN 5985-00-989-6953