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 2925-00-869-6967
NSN 5835-01-355-3654
NSN 5998-00-108-6056
NSN 5930-01-226-0903
NSN 6105-00-765-9798
NSN 5950-01-161-8198
NSN 6645-00-583-0066
NSN 5985-01-432-2483
NSN 5950-01-343-2869
NSN 6105-01-386-1529
NSN 5925-01-064-9884
NSN 5930-01-163-7282