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 5990-01-649-4647
NSN 6130-01-430-7193
NSN 6320-00-937-5625
NSN 5895-01-415-1377
NSN 5935-00-493-6521
NSN 7035-01-660-6289
NSN 5930-01-262-7600
NSN 6130-01-239-0394
NSN 6240-01-411-5630
NSN 5996-00-211-7010
NSN 5950-01-478-2243
NSN 6645-00-300-0160