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 6685-00-705-4197
NSN 6685-00-915-5601
NSN 5920-01-582-7519
NSN 5915-01-265-0862
NSN 5910-00-681-3003
NSN 6145-01-141-7937
NSN 5945-01-100-8479
NSN 6130-01-474-5985
NSN 5910-00-570-7524
NSN 6110-01-657-7290
NSN 5950-00-727-4079
NSN 5945-00-835-6315