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 4140-00-948-3663
NSN 6240-01-358-7127
NSN 5930-00-989-7830
NSN 5998-00-080-3653
NSN 6610-00-598-5268
NSN 4140-01-534-3962
NSN 5925-01-411-6028
NSN 5835-00-443-1079
NSN 5990-00-518-0684
NSN 5910-01-432-4619
NSN 5950-01-511-5909
NSN 6135-01-371-8427