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 6645-01-019-8662
NSN 5985-01-289-5212
NSN 6105-01-414-8829
NSN 6150-01-289-1283
NSN 6240-01-569-4482
NSN 6150-00-433-2338
NSN 5950-01-298-8045
NSN 5960-00-492-2502
NSN 5915-00-880-2193
NSN 6685-01-442-7212
NSN 6150-01-192-8593
NSN 5960-01-471-8201