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 6220-01-299-8742
NSN 5895-01-567-2308
NSN 5925-00-319-4212
NSN 6685-01-082-2322
NSN 6130-01-227-8408
NSN 6105-00-838-9409
NSN 5998-01-076-4364
NSN 5965-01-448-6055
NSN 6320-01-346-5158
NSN 6645-00-153-3834
NSN 5990-01-491-1397
NSN 5998-01-612-8895