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 5960-01-124-8336
NSN 4140-01-142-3192
NSN 6110-01-422-9861
NSN 6645-00-071-2200
NSN 6105-01-355-1262
NSN 5945-01-605-8356
NSN 5855-00-357-1158
NSN 6105-01-028-6793
NSN 6150-00-852-6506
NSN 5965-01-036-8415
NSN 5975-00-246-4906
NSN 6650-01-089-6192