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 5998-01-564-8189
NSN 6685-01-464-1304
NSN 6130-00-200-5531
NSN 6145-01-117-7465
NSN 7035-01-551-5533
NSN 5895-01-218-0602
NSN 6610-00-398-9673
NSN 6685-00-945-2367
NSN 6105-00-181-9774
NSN 5965-01-179-5847
NSN 5950-01-106-3533
NSN 5985-01-366-0090