BACS12GU4K20: MS27039C4-20

BACS12GU4K20

What it is: Aircraft unit screw, Boeing part number
Equivalents: MS27039C4-20MSCatalog onlySame NSN 5305-01-685-1080 (government catalog). Not a maker's approval: confirm on the drawing.
Install tooling, by who made the part: Not documented for this part number. Ask a tooling specialist →

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

Full detail: decode, cited documents, every stock number

Dash numbers not decoded: SpecLok has no structured decoder for this series. Read them from the controlling spec.

Install tooling, by who made the partNot documented for this part number.

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Identical or approved-alternate part numbers, each with the document that states it.

No sourced equivalent on file for BACS12GU4K20. SpecLok only lists an equivalent when a manufacturer or government document states it.