American made RA20LASB201A wirewound potentiometer. Manufacturer: CLAROSTAT RA20 series. Resistance: 200 Ohm. 10% tolerance. Linear taper. Locking 1/2 in. long x 3/8 x 32-NEF-2A bushing. 5/8 in. screwdriver slotted shaft.
Meets strict military standard MIL-R-19.