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 6610-01-545-0766
NSN 5855-01-441-3189
NSN 5915-01-475-9449
NSN 5996-01-613-5825
NSN 6610-01-464-3037
NSN 5925-01-281-7511
NSN 6105-00-829-3756
NSN 6150-01-113-0170
NSN 5960-00-455-0817
NSN 6150-01-424-7149
NSN 6145-01-449-9431
NSN 6645-01-063-8243