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 5996-01-562-4780
NSN 6145-01-025-4493
NSN 6135-01-445-6589
NSN 6320-00-194-4252
NSN 6650-01-446-8752
NSN 5895-00-707-6663
NSN 5905-00-008-9757
NSN 5905-00-182-8424
NSN 6110-00-982-9714
NSN 6620-01-047-1301
NSN 6620-01-512-3032
NSN 6110-00-518-2998