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 6110-00-288-4179
NSN 6240-01-521-5982
NSN 6145-00-568-8030
NSN 6130-01-412-0791
NSN 5905-01-469-2002
NSN 5910-01-597-5475
NSN 5985-00-584-3795
NSN 6220-01-087-0325
NSN 6240-01-363-8258
NSN 5965-01-204-1423
NSN 5935-01-324-9767
NSN 6130-01-064-8126