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 6685-01-422-2229
NSN 5935-00-243-1861
NSN 5835-01-366-5907
NSN 6240-01-420-4246
NSN 5945-01-082-6965
NSN 6150-00-233-6356
NSN 6610-01-536-2818
NSN 6650-01-496-2662
NSN 5985-00-863-3498
NSN 5925-00-924-6296
NSN 6130-01-439-6494
NSN 5985-01-005-0370