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 5855-01-037-7342
NSN 5925-01-432-8431
NSN 5960-00-421-1054
NSN 5855-01-286-9928
NSN 5835-01-576-9013
NSN 5935-00-679-9663
NSN 6145-01-417-1705
NSN 5960-01-376-3880
NSN 5915-01-106-0297
NSN 6145-00-422-2644
NSN 5920-01-380-1598
NSN 2925-01-261-0701