Nikon Camera Parts 2 Nikon EM Actuating Unit PreviousNikonos Diaphragm Knob 35mm f/2.5 Black NextNikon FM2 Plate Accessory Shoe Nikon EM Actuating Unit Nikon EM Actuating Unit $30.00 New Old StockPart # 23FB-B7 Quantity: Add To Cart Facebook0 Twitter Tumblr You Might Also Like Nikon EM Rewind Side Leatherette $19.99 Nikon EM Rewind Spring $22.99 Nikon EM Charge Over Knob $15.00 Nikon EM Take-Up Cam $14.99