4L510 V-Belt, Outside Length 51 in/ STRENGTHENING FEATURE: FIBER CORD END ITEM IDENTIFICATION: W/S:LOS ANGELES CLASS SSN (688); FMS-NEWPORT CLASS LST; BLUE RIDGE CLASS AS; IWO JIMA CLASS LPH; HELICOPTER, SEARCH AND RESCUE, HH-60H; HELICOPTER, USCG SEARCH AND RESCUE, HH-60J; HELICOPTER, CARRIER BASED ASW, SH-60F; FORRESTAL CLASS CV; VICTORIOUS CLASS T-AGOS 19; AUSTIN SHIP CLASS LLPD-4 AMPHIBIOUS TRANSPORT DOCKS; GALLEY EQUIPMENT & FOOD SERVICE; LANDING CRAFT UTILITY 174 FT; EMORY S. LAND CLASS AS CROSS-SECTIONAL SIZE: 4L NOMINAL WIDTH: 0.500 INCHES NOMINAL EFFECTIVE OUTSIDE LENGTH: 51.000 INCHES MATERIAL: FIBER BODY AND RUBBER STYLE DESIGNATOR: A2 COG OR NOTCHED