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 5895-00-708-9312
NSN 5990-00-836-7962
NSN 6150-01-422-9129
NSN 7035-01-027-3510
NSN 6135-01-616-5983
NSN 6150-01-029-2488
NSN 7035-00-250-0982
NSN 5996-01-080-5957
NSN 6685-01-588-4886
NSN 6145-01-059-3662
NSN 5985-01-246-0081
NSN 5915-01-092-1364