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 5965-01-349-9029
NSN 2925-00-350-0348
NSN 6645-01-629-0847
NSN 5985-00-850-8283
NSN 6320-01-313-8306
NSN 5930-01-027-1720
NSN 6130-01-094-5599
NSN 5998-01-108-2976
NSN 6685-01-255-1581
NSN 5835-00-973-6828
NSN 4140-00-150-8265
NSN 6610-01-050-3075