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 6645-01-599-2311
NSN 6105-01-147-5170
NSN 5895-01-609-3421
NSN 5920-01-401-5315
NSN 6320-01-549-7201
NSN 2925-01-063-7876
NSN 5895-01-418-1764
NSN 5998-01-050-8908
NSN 6105-01-362-5709
NSN 5915-01-123-8292
NSN 5965-00-787-3028
NSN 5960-00-121-7458