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 6320-01-512-2031
NSN 6320-00-886-9771
NSN 5910-01-254-6097
NSN 5990-01-426-7350
NSN 6105-01-468-1808
NSN 6645-01-157-4199
NSN 4140-00-293-3619
NSN 5960-00-925-6922
NSN 4140-00-307-2732
NSN 6685-01-519-6746
NSN 7035-00-470-4977
NSN 5998-01-523-0279