ASTM-B438 › Complete Document History
Standard Specification for Bronze-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated)
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2021 EDITION - Bronze-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated) - May 5, 2021
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Obsolete Revision Information: |
2017 EDITION - Bronze-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated) - May 1, 2017
2013 EDITION - Bronze-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated - June 1, 2013
ADOPT WITHDRAWN - FYI ONLY: DOD ADOPTION WITHDRAWN - Jan. 12, 2009
2008 EDITION - Bronze-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated - June 1, 2008
2005 EDITION - Bronze-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated - Nov. 1, 2005
2004 EDITION - Bronze-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated - April 1, 2004
2000A EDITION - Bronze-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated - Nov. 10, 2000
2000 EDITION - Bronze-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated - May 1, 2000
1995A EDITION - Bronze-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated - Sept. 10, 1995
1995A(E1) EDITION - B438 AND B438M COMBINED - Sept. 10, 1995
DOD ADOPTION - FYI ONLY: DOD ADOPTED - Aug. 15, 1995
1995 EDITION - Bronze-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated - July 15, 1995
1983A(E1) EDITION - EDITORIALLY CORRECTED - Oct. 1, 1984
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