5310-01-264-9147 NUT,SELF-LOCKING,EXTENDED WASHER Index 5330-01-264-9149 SEAL,PLAIN ENCASED

National Stock Number:
5310-01-264-9148

Federal Supply Class:
5310

National Item Identification Number:
012649148

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:
2051G69-00101289GENERAL ELECTRIC COMPANY DBA GE DIV GE-AVIATION GEAR PLANT
2051G69-00117454TIMKEN GEARS & SERVICES INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER4.501 INCHES MINIMUM AND 4.506 INCHES MAXIMUM
OVERALL DIAMETER6.500 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONB4A2A,CAGEC 01289 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS1.620 INCHES NOMINAL


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