5310-01-520-9408 WASHER,FLAT Index 5310-01-520-9410 WASHER,FLAT

National Stock Number:
5310-01-520-9409

Federal Supply Class:
5310

National Item Identification Number:
015209409

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:
140-007-25J40-297499BELL TEXTRON INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.391 INCHES NOMINAL
OVERALL DIAMETER1.250 INCHES NOMINAL
MATERIALSTEEL COMP 630 OVERALL
PERIPHERAL SHAPE STYLEROUND
SPECIAL FEATURESWASHER HAS CHAMFERED INSIDE DIAMETER. CHAMFER IS .005 INCHES AND CHAMFER ANGLE IS 45 DEGREES.
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.062 INCHES NOMINAL


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