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 5950-01-634-0677
NSN 6685-01-172-0218
NSN 5910-01-052-3450
NSN 5960-01-179-4009
NSN 5935-00-401-0735
NSN 6105-01-112-9976
NSN 5998-01-282-0071
NSN 5920-01-130-8411
NSN 6650-01-207-2905
NSN 6145-00-236-0012
NSN 5895-00-156-4531
NSN 6685-00-057-2777