MIL-F-51539 Revision A, September 28, 1990
FILTER UNIT, GAS-PARTICULATE: 400 CFM, 208 V, 400 HZ, M59
Includes all amendments and changes through Validation Notice 2, August 3, 2004
NOTICE OF INACTIVATION FOR NEW DESIGN
This notice should be filed in front of MIL-F-51539A(EA), dated 28 September 1990, with Amendment 1, dated 24 January 1992.
MIL-F-51539A(EA) is inactive for new design and is no longer used except for replacement purposes.