An item specifically designed to wholly, or in part, enclose the device securing the knob in position. It may have reference markings constant with functional requirements.
Classification: Parts and accessories (not specified or included elsewhere in this chapter) for machines, appliances, instruments or apparatus of chapter 90
NSN 6620-00-227-6776
NSN 6620-00-593-5313
NSN 6110-01-573-3466
NSN 6105-00-331-2391
NSN 5998-01-077-3756
NSN 6110-01-198-1557
NSN 5975-00-467-8777
NSN 6650-01-199-0570
NSN 6610-01-608-5285
NSN 5915-01-252-0244
NSN 5975-00-398-9716
NSN 5960-00-686-7988