What it is
MS35206 machine screw, pan head, cross-recessed, carbon steel, Pan head, cross-recessed, .250-20 UNC-2A (dash 291), length 3.000" (tolerance +.000, -.094), not grip (Table I prints length only)
Equivalents
No equivalent on file: no maker document names one and the government catalog lists none on its stock number.
Install tooling, by who made the part
Not documented for this part number. Ask a tooling specialist →

Reference only: the drawing and its process spec govern. How to read this

Every size and maker in the MS35206 series →

Full detail: decode, cited documents, every stock number
MS35206-291 | SpecLok