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 6135-00-548-2765
NSN 6110-01-125-9723
NSN 6650-01-151-6450
NSN 6610-01-065-1073
NSN 5975-00-520-2906
NSN 7035-00-731-8729
NSN 5996-01-425-1455
NSN 6150-01-162-7539
NSN 5985-00-758-8911
NSN 6145-01-501-6174
NSN 5835-01-469-6706
NSN 5985-01-330-2848