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 6145-01-495-0942
NSN 5920-01-181-5248
NSN 6220-00-225-1732
NSN 6685-01-274-9310
NSN 5930-00-928-5106
NSN 6145-01-627-8845
NSN 5930-01-597-3879
NSN 5915-00-063-3689
NSN 5960-00-840-8976
NSN 6320-00-115-0883
NSN 5960-01-553-4557
NSN 4140-01-311-0076