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 5925-01-406-4093
NSN 6645-00-515-6148
NSN 7035-01-045-7202
NSN 6650-00-499-7446
NSN 5985-01-250-1307
NSN 5960-01-464-9605
NSN 5920-01-139-5137
NSN 5835-01-632-6627
NSN 6145-01-044-1635
NSN 5905-00-862-0150
NSN 4140-01-100-6160
NSN 6650-00-796-9972