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 5910-00-213-6457
NSN 6620-01-550-6059
NSN 5905-01-129-9786
NSN 5999-01-167-5052
NSN 7035-01-463-9855
NSN 5855-01-421-1440
NSN 2925-01-485-6982
NSN 5990-01-020-6598
NSN 4140-00-240-1848
NSN 5960-01-278-9394
NSN 5895-01-360-0855
NSN 5895-01-196-6312