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 6645-00-226-2270
NSN 6650-00-034-8438
NSN 6220-01-416-8487
NSN 5935-00-127-2482
NSN 7035-01-079-1514
NSN 2925-01-496-1068
NSN 6110-01-015-2866
NSN 6130-01-339-8011
NSN 5895-00-186-8572
NSN 6145-01-132-4136
NSN 6685-01-342-3596
NSN 6685-01-377-4716