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 6320-01-211-6578
NSN 6685-01-237-7993
NSN 5950-01-299-5122
NSN 5999-00-543-8700
NSN 6610-01-053-6781
NSN 6620-00-516-3204
NSN 5996-01-351-8868
NSN 6685-01-480-9230
NSN 5998-01-167-7893
NSN 2925-00-391-0331
NSN 5996-00-553-7348
NSN 5895-01-303-1038