A40 V-Belt, Outside Length 42 in/ ANGLE IN DEG: 40.0 ENVIRONMENTAL PROTECTION: OIL RESISTANT AND HEAT RESISTANT AND STATIC FREE STRENGTHENING FEATURE: SYNTHETIC CORD END ITEM IDENTIFICATION: GRUMMAN A10 AIRCRAFT PERFORMANCE TYPE: STANDARD CAPACITY NOMINAL WIDTH: 0.500 INCHES NOMINAL PITCH LENGTH: 41.300 INCHES MATERIAL: FIBER BODY AND RUBBER AND FIBER SYNTHETIC AND RUBBER CHLOROPRENE CLASS CR AND RUBBER SYNTHETIC STYLE DESIGNATOR: A1 PLAIN