Manufacturer Part Number: CNFI5137-010BX|Nut Type|Castle Lock NutMaterial|SteelThread Size (Inch)|1-3/8-12Thread Size (mm)|Material Grade|5Height (Decimal Inch)|Height (mm)|Height (Inch)|1-3/8Width Across Flats (Decimal Inch)|Width Across Flats (Inch)|2-1/16Width Across Flats (mm)|Locking Style|Flange Diameter (Decimal Inch)|Thread Direction|Right HandThread Fit Class|Standards|ANSI B18.2.2Insert Material|Fastener Standard|ANSI B18.2.2Military Specification|Does Not Meet Military SpecificationsWidth Across Points (Decimal Inch)|Width Across Points (mm)|System Of Measurement|InchFinish Coating|Bright/UncoatedAdditional Information|Product Service Code|UNSPSC Code|