2805-00-621-0753 CRANKSHAFT,ENGINE Index 1680-00-621-0766 TRANSMISSION,MECHANICAL,AIRCRAFT

National Stock Number:
5310-00-621-0763

Federal Supply Class:
5310

National Item Identification Number:
006210763

Description:
WASHER,FLAT

Detail:
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.


Manufacturer Information:
69456A1573030HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING65.0 ROCKWELL B MINIMUM AND 105.0 ROCKWELL B MAXIMUM
HOLE DIAMETER0.207 INCHES MINIMUM AND 0.211 INCHES MAXIMUM
OVERALL DIAMETER0.370 INCHES MINIMUM AND 0.395 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5513 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5515 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A582,COND A ASSN STD 3RD MATERIAL RESPONSE OR AMS 5640 ASSN STD 3RD MATERIAL RESPONSE OR AMS 5640 ASSN STD 4TH MATERIAL RESPONSE OR AMS 5640 ASSN STD 5TH MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 304 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OR STEEL COMP 303SE OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.013 INCHES MINIMUM AND 0.019 INCHES MAXIMUM


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