Bearing Inserter, NSN 5120-01-132-1387. SPECS: AAVL Pilot Diameter 1.406 inches nominal ABHP Overall Length 3.500 inches nominal ABMZ Diameter 1.750 inches nominal AJWQ Pilot Length 0.250 inches nominal APHE Operation Method Impact BRZR Drive End Type Pilot FEAT Special Features Phosphate coat MIL-C-16232, type M, class 2; heat treat to rockwell C 24-28, MIL-H-6875 prior to finish machining MATT Material Steel SHPE Shape Round with flat 14461 R2C8