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 5920-01-526-1842
NSN 5950-00-614-2025
NSN 7035-01-245-7973
NSN 6105-01-464-0752
NSN 5985-01-395-9734
NSN 5855-01-172-2228
NSN 7035-01-049-6776
NSN 6150-01-175-1096
NSN 6240-00-340-6977
NSN 6685-00-998-2754
NSN 6110-00-589-9905
NSN 6610-00-136-2662