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 5985-01-535-6924
NSN 5910-01-255-0844
NSN 5985-00-997-9323
NSN 7035-00-238-3662
NSN 2925-01-269-3861
NSN 6240-00-789-3370
NSN 5985-01-540-4681
NSN 6105-01-416-7769
NSN 2925-00-238-1668
NSN 6130-01-145-4924
NSN 5998-00-519-0741
NSN 6650-00-684-3060