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 5950-00-390-9883
NSN 6220-01-301-0893
NSN 5835-00-683-4612
NSN 5975-01-296-6191
NSN 6110-01-653-3225
NSN 5835-00-513-9680
NSN 6685-00-100-1511
NSN 6620-01-431-0706
NSN 5960-00-139-9416
NSN 6645-01-056-1445
NSN 6135-01-387-0754
NSN 5998-01-621-5039