USAF General Purpose Eddy Current Standard Block, 1018 Steel

USAF General Purpose Eddy Current Standard Block 1018 Steel Geometry: Overall Dimensions: 1.06" thick x 4.0" wide x 7.0" long Alloy: 4340 Steel, clear anodized (20) Fastener Holes from .156 to .750" diameter. (40) Corner notches, (20) Bore notches, (4) Surface notches (1) Tapered notch, (1) Radius notch All EDM notches are .004 ± .001 wide Finished standard is anodized per MIL-A-8625 Manufactured IAW U.S.A.F. Tech Order 33B-1-1, Figure 4-39. NSN 6635-01-092-5129 and P/N 7947479-10.

USAF General Purpose Eddy Current Standard Block, 1018 Steel


Navy Universal Eddy Current Standard.  A (3) plate assembly containing (20) fastener holes with a total of (71) EDM notches in various locations.
  • Overall Dimensions:  .875" thick x 4.0" wide x 7.0" long
  • Alloy:  6AL-4V Titanium
  • (20) Fastener Holes from .156 to .750" diameter.
  • (40) Corner notches, (20) Bore notches, (9) Surface notches, (1) Tapered notch, (1) Radius notch
  • All EDM notches are .004 ± .001 wide
  • Manufactured IAW U.S.A.F. Tech Order 33B-1-1, Figure 4-40.
  • P/N NRK-3T
  • Availability: 442 In Stock
  • Model: 7405
  • Manufacturer: NDE Flaw Technologies Pvt Ltd (NDE TECH)

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