"USED ON ARMY M871A3 TRAILER (NSN 2330-01-458-6865). ALSO USED ON USMC M870A2 MHET (MEDIUM, HEAVY EQUIPMENT TRANSPORTER NSN 2330-01-442-4975). SERVICE TYPE OVER THE ROAD PLATFORM TRAILER SPECIFICATION C/PN GROUND FLAP NO TREAD HIGHWAY WHEEL ASSEMBLY NSN 2530-01-508-2786"