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 5920-01-179-1015
NSN 6105-00-239-4194
NSN 5920-00-369-0923
NSN 6105-01-113-1446
NSN 5915-01-318-8110
NSN 6105-01-312-1481
NSN 5965-00-144-2543
NSN 5990-01-452-0911
NSN 5950-00-227-8740
NSN 6240-01-221-9093
NSN 6320-00-242-3300
NSN 6145-00-113-3911