.325 inches. .050 inches (1.3 mm). 3/16 inch (4.8 mm): 104005, 25896, 23727. LubriTec oiling system. Husqvarna. Poulan. McCulloch. Echo. Ryobi. Dolmar: PS-460 (Ensure your model has a .325 inch sprocket), PS-510 (Ensure your model has a .325 inch sprocket), PS-5100S (Ensure your model has a .325 inch sprocket), PS-5105 (Ensure your model has a .325 inch sprocket), PS-6100. Echo: CS-400EVL, CS-440, CS-440EVL, CS-450, CS-450P, CS-500P, CS-510, CS-520, CS-530, CS-550 (Ensure your model has a .325 inch sprocket), CS-4400, CS-4500, CS-4600, CS-5000. Husqvarna: 36 (Ensure your model has a .325 inch sprocket), 40, 41 (Ensure your model has a .325 inch sprocket), 44 (Ensure your model has a .325 inch sprocket), 45, 50 (Ensure your model has a .325 inch sprocket), 51 (Ensure your model has a .325 inch sprocket), 55 Rancher (Ensure your model has a .325 inch sprocket), 136 (Ensure your model has a .325 inch sprocket), 137 (Ensure your model has a .325 inch sprocket), 141 (Ensure your model has a .325 inch sprocket), 142 (Ensure your model has a .325 inch sprocket), 240 (Ensure your model has a .325 inch sprocket), 254XP (Ensure your model has a .325 inch sprocket), 257 (Ensure your model has a .325 inch sprocket), 261 (Ensure your model has a .325 inch sprocket), 262XP (Ensure your model has a .325 inch sprocket), 340, 345, 350, 353 E-TECH, 357XP (Ensure your model has a .325 inch sprocket), 359 (Ensure your model has a .325 inch sprocket), 359 E-TECH (Ensure your model has a .325 inch sprocket), 362XP (Ensure your model has a .325 inch sprocket), 435, 435E, 440E, 445, 450, 450E, 455 Rancher (Ensure your model has a .325 inch sprocket), 460 Rancher (Ensure your model has a .325 inch sprocket), 550XP, 555 (Ensure your model has a .325 inch sprocket), 560XP (Ensure your model has a .325 inch sprocket). Makita: DCS430, DCS431, DCS460 (Ensure your model has a .325 inch sprocket), DCS510 (Ensure your model has a .325 inch sprocket), DCS540 (Ensure your model has a .325 inch sprocket), DCS520i (Ensure your model has a .325 inch sprocket), DCS5200i (Ensure your model has a .325 inch sprocket). McCulloch: MAC 4600, MAC 4700, MS 1846, MS 1849AV, PM 40, PM 46, PM 4700, PM 5000. Poulan: 295, 315, 335, 336, 2700, 2750, 2775, 2800, 2900, 3300, 4620, 4620AV, 4620AVX. Ryobi: RY10518, RY10519, RY10520, RY10521. Look for the gold-colored ID link that shows the exact fit replacement saw chain part number to reference next time you buy saw chain. Classified UL listed. Low kickback saw chain in accordance with ANSI/OPEI B175.1 2012, paragraph 5.11.2.4 and with CSA Z62.3. This saw chain met the kickback performance requirements of ANSI B175.1-2012 when tested according to the provisions of ANSI B175.1-2012. Low kickback saw chain meets the kickback performance requirements of CSA standard Z62.3. OregonProducts.com. Made in Canada. Designed in the USA.