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 5910-01-453-9356
NSN 2925-01-197-7864
NSN 5996-01-258-5638
NSN 5990-00-978-4936
NSN 5915-00-073-2618
NSN 5965-00-594-3115
NSN 6610-01-592-4150
NSN 6620-01-483-1138
NSN 5985-00-721-0255
NSN 6105-00-404-7656
NSN 6105-00-060-3280
NSN 5835-01-485-1408