Product Details | FLAT WASHER

5310-00-068-5661 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.

Part Alternates: 5310-00-068-5661, 00-068-5661, 5310000685661, 000685661

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 00-068-5661

Drawings & Photos | NSN 5310-00-068-5661


Cross Reference | NSN 5310-00-068-5661

Part Number Cage Code Manufacturer
403282CLA 00088 ROYAL OAK GAGE INC
403282CLA 21128 JDMC ENTERPRISES DBA HIGH SPEED MACHINE PRODUCTS
403282CLA 77445 UNITED TECHNOLOGIES CORPORATION DBA PRATT WHITNEY-SPARE PARTS
488602CL8 00088 ROYAL OAK GAGE INC
488602CL8 77445 UNITED TECHNOLOGIES CORPORATION DBA PRATT WHITNEY-SPARE PARTS

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Technical Data | NSN 5310-00-068-5661

Characteristic Specifications
MATERIAL STEEL COMP 410 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION SAE ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5613 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
HOLE DIAMETER 0.550 INCHES MINIMUM AND 0.570 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE 1 ROUND
OVERALL DIAMETER 0.992 INCHES MINIMUM AND 0.996 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE 1 ROUND
CROSS-SECTIONAL SHAPE STYLE 1 RECTANGULAR
THICKNESS 0.056 INCHES MINIMUM AND 0.058 INCHES MAXIMUM
SURFACE FINISH 63.0 MICROINCHES TOP 63.0 MICROINCHES BOTTOM
III HEAT TREATMENT AS FABRICATED
MANUFACTURERS CODE 77445
DESIGN CONTROL REFERENCE 488602CL8

Restrictions/Controls & Freight Information | NSN 5310-00-068-5661

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Category Code Description
No Freight Information