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 6145-01-137-4473
NSN 6320-01-390-5385
NSN 5915-01-616-4641
NSN 2925-00-201-8247
NSN 6240-00-132-0955
NSN 6610-01-542-8825
NSN 6240-01-472-2950
NSN 5915-00-934-0749
NSN 5920-01-068-3135
NSN 6685-01-328-1511
NSN 5930-00-201-3421
NSN 5999-01-547-9604