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 6105-00-813-3645
NSN 6645-00-296-8310
NSN 5985-00-760-4119
NSN 7035-01-462-8701
NSN 5835-01-023-6774
NSN 6650-01-191-9059
NSN 5960-01-358-9733
NSN 6220-01-296-3385
NSN 5960-01-252-8821
NSN 6645-01-400-1137
NSN 5985-01-116-4529
NSN 6130-01-172-9489