View Historical Standards for B438/B438M:

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Document Designation and Title Year Select Item(s) B438/B438M Specification for Bronze Powder Metallurgy (P/M) Bearing (Oil-Impregnated) 05 B438/B438M Standard Specification for Sintered Bronze Bearings (Oil-Impregnated) 04 B438/B438M Standard Specification for Sintered Bronze Bearings (Oil-Impregnated) 00a B438/B438M Standard Specification for Sintered Bronze Bearings (Oil-Impregnated) 00 B438/B438M Standard Specification for Sintered Bronze Bearings (Oil-Impregnated) 95ae1