part number: AN310-16 AN310-16 AIRFRAME CASTLE NUT Plain airframe castle nut Material: Steel, cadmium plated Thread: 1-14 Dimensions: A: 1-1/2 inch B: 1-47/64 inch C: 1 inch D: 1-1/2 inch MSRP: Now: $10.44 Add to Cart part number: AN310-16 AN310-16 AIRFRAME CASTLE NUT MSRP: Now: $10.44 Add to Cart