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 5950-01-618-4985
NSN 5835-01-555-8963
NSN 5855-01-420-0851
NSN 5915-01-551-5984
NSN 6220-01-616-4557
NSN 7035-01-499-9239
NSN 6240-00-283-0147
NSN 4140-01-216-7107
NSN 6650-01-659-8445
NSN 5999-01-414-1403
NSN 6240-00-172-8451
NSN 6135-01-220-7193