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 5990-01-485-0260
NSN 5910-01-605-1469
NSN 5905-00-004-1224
NSN 6145-00-044-5545
NSN 5950-00-177-3055
NSN 5930-00-875-1947
NSN 5999-00-471-7455
NSN 5998-01-432-0101
NSN 5915-01-251-0852
NSN 5920-01-203-3152
NSN 5925-00-841-6798
NSN 5945-01-437-9410