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 6130-01-466-2937
NSN 6320-00-116-3658
NSN 5895-00-758-2151
NSN 5975-00-144-7878
NSN 6650-01-317-2101
NSN 5915-01-316-8326
NSN 6610-00-198-6870
NSN 6110-01-575-5104
NSN 4140-01-274-7720
NSN 5998-00-945-6447
NSN 7035-01-604-6735
NSN 5965-01-463-8176