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 6650-00-809-1817
NSN 6645-00-183-8812
NSN 6320-01-359-3921
NSN 5855-01-473-4354
NSN 5965-01-398-1857
NSN 6650-00-035-9297
NSN 5945-00-844-6559
NSN 5999-00-858-1224
NSN 5999-01-324-8694
NSN 5895-01-528-6538
NSN 5999-01-651-4466
NSN 5920-01-020-7659