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 5910-01-219-1267
NSN 6130-00-490-5757
NSN 6130-01-193-0471
NSN 5945-01-542-2747
NSN 6320-00-823-2015
NSN 6610-00-357-2937
NSN 6320-01-462-2295
NSN 5835-01-432-1277
NSN 7035-01-026-0117
NSN 6145-00-255-1480
NSN 6320-01-361-7467
NSN 6105-01-378-1300