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 5950-01-063-7875
NSN 5910-00-246-3561
NSN 5996-00-289-9847
NSN 7035-00-238-3662
NSN 5990-00-359-9839
NSN 5998-01-077-7671
NSN 6105-01-167-0758
NSN 5920-00-116-4959
NSN 5999-01-599-8474
NSN 5998-01-232-9995
NSN 5855-01-416-1527
NSN 5950-01-457-9468