MAINTENANCE KIT 0323/0523/VAC/PRES OILLESS W/SOUND CHAMBER Includes: 4 AH850A Vane 0323, 0522, 0523 2 AK473 O Ring 0323/0523/0823/1023 (SP) 1 AK521 Gasket (SP) 2 AK524 Spacer Felt 03/05/08/1023 (SP) 1 AK969 Label, Blank Carton 1 PC127A Plastic Clam Shell