What it is
AN970 flat washer, Flat washer (large area), fits 3/8 bolt; ID (A) .390"; OD (D) 1.625" (tolerance ±.010), thickness .063"
Equivalents
  • MS63040-6MSCatalog onlySame NSN 5310-00-167-0768 (government catalog). Not a maker's approval: confirm on the drawing.

+1 more reference numbers in the detail below.

Install tooling, by who made the part
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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
AN970-6: MS63040-6 | SpecLok