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   Data updated: 05 Feb 2026. Home |  About Quick Search |  ASSIST |  ASSIST Updates Document Details

Document ID:   AIR-STD-4023       Scroll down to access document images

Overview
Title:  Hydraulic Fluid, Petroleum (H-515), Polyalphaolefin (H-537, H-538) and Phosphate Ester Fluids (H-522, H-523, H-524)
Scope:  The purpose of this agreement is to provide a document (Guide Specification) which establishes the minimum quality standard on the aviation hydraulic fluids H515, H-522, H-523, H-524, H-537 and H538 used by AFIC Nations.
Status:  Active Promulgation Date:  09-AUG-2022   US Ratification Date:    09-AUG-2022
Doc Category:   Air Force Interoperability Council (AFIC)  

Responsibilities
 Treaty Organization:    Air Force Interoperability Council
Sponsor:   FG, Fuels
Lead Agent:  06   AF/A5SP, Global Plans & Posture Division  


   Controlled Distribution Document(s)   
Revision History Click on column headings for a description of column content.
MediaDocument Part DescriptionDist StmtPromulgation DatePagesSize
lock Revision 2 Amendment 2 C09-AUG-20226380.3 KB
lock Revision 2 Amendment 1 C24-JUL-202033943.3 KB
lock Base Document C18-AUG-2010549.8 KB

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WARNING: UNAUTHORIZED ACCESS TO THIS UNITED STATES GOVERNMENT COMPUTER SYSTEM AND SOFTWARE IS PROHIBITED BY PUBLIC LAW 99-474 (THE COMPUTER FRAUD AND ABUSE ACT OF 1986) AND CAN RESULT IN ADMINISTRATIVE, DISCIPLINARY OR CRIMINAL PROCEEDINGS.