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 5930-01-067-8418
NSN 5965-00-661-0469
NSN 5855-00-494-9581
NSN 6320-00-790-4844
NSN 5910-01-518-3248
NSN 5960-01-589-6846
NSN 5835-01-485-1408
NSN 5920-00-288-5849
NSN 5950-01-277-3509
NSN 6645-00-679-8203
NSN 6110-01-351-4527
NSN 6105-00-483-9476