SPRING CLAMP FOR WINDSHIELD WIPER AIR LINES FOUND ON 2.5 TON AND SOME 5 TON TRUCKS. 

A COMPLETE INSTALLATION REQUIRES 8 CLAMPS IN TOTAL. 

ZINC PLATED STEEL. 

PART # 7279627 NSN 4730-00-727-9627, 4730007279627, 4730-00-708-0384