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 5950-01-513-4246
NSN 6110-01-219-1655
NSN 6135-00-752-1589
NSN 6105-01-616-9020
NSN 6650-00-479-9329
NSN 6150-01-267-0343
NSN 6105-00-010-9803
NSN 5915-01-307-2894
NSN 5925-01-430-4698
NSN 7035-01-332-3496
NSN 6105-01-487-4229
NSN 5960-01-449-5726