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 5996-01-026-9928
NSN 5835-01-261-2978
NSN 5985-01-227-1919
NSN 5935-01-486-5890
NSN 5950-00-170-2787
NSN 6110-01-041-3963
NSN 6145-00-179-2493
NSN 5935-00-985-5448
NSN 5985-01-058-5465
NSN 5895-00-467-1140
NSN 6240-00-105-8380
NSN 5950-01-547-0043