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 6135-01-293-3066
NSN 6685-00-909-0133
NSN 5990-01-414-7618
NSN 6320-01-119-3935
NSN 5925-01-141-4703
NSN 6105-01-487-6663
NSN 5930-00-207-9422
NSN 6610-00-451-3325
NSN 6645-01-579-6304
NSN 5835-01-064-0261
NSN 6685-01-290-4378
NSN 5930-01-306-3414