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 6135-01-523-3198
NSN 4140-01-495-5623
NSN 5945-00-543-3231
NSN 6610-01-044-4740
NSN 5935-00-409-9452
NSN 5910-01-507-2360
NSN 6685-00-089-4480
NSN 5960-00-191-7448
NSN 6685-00-828-4458
NSN 5975-00-203-1265
NSN 5996-01-390-5010
NSN 6135-01-589-0333