Tension spring 1, 3×7, 8×20, 49 (P#4811506) 4811506 Category: Siemens Healthcare Low Prices Price match guarantee Guaranteed Fitment. Always the correct part In-House Experts. We know our products Easy Returns. Quick & Hassle Free 4811506 – Tension spring 1, 3×7, 8×20, 49 Description Description Tension spring 1, 3×7, 8×20, 49