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 6130-01-144-3589
NSN 5950-00-584-2073
NSN 6645-01-582-9833
NSN 7035-00-470-4977
NSN 5998-01-341-3911
NSN 6105-00-945-6072
NSN 4140-01-146-5409
NSN 6135-00-452-2266
NSN 6240-01-057-5822
NSN 6650-00-882-3576
NSN 6240-01-013-6052
NSN 6620-00-803-2346