A-dec® washer, Nylon, .142 ID x .312 OD (A-dec® #004.036.00) Package of 50 Replaces 24V Volt/150 Watt bulbs in older 6300 lights A-dec® is a registered trademark of A-dec, Inc. DCI has no affiliation with A-dec and A-dec has not authorized DCI replacement parts to be used on or in connection with A-dec® products.