3020-00-437-0253 GEAR,SPUR Index 3020-00-437-0263 GEAR,HELICAL

National Stock Number:
5310-00-437-0260

Federal Supply Class:
5310

National Item Identification Number:
004370260

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:
2695331435LUCAS AEROSPACE POWER EQUIPMENT CORPORATION
2695335351GE AVIATION SYSTEMS LLC
269533CPE0SAFRAN POWER USA LLC


Techincal Specification:
MATERIALSTEEL COMP 1010 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.313 INCHES MINIMUM AND
0.315 INCHES MAXIMUM
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER0.432 INCHES MINIMUM AND
0.442 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.019 INCHES MINIMUM AND
0.021 INCHES MAXIMUM
THE MANUFACTURERS DATA
MANUFACTURERS CODE31435
DESIGN CONTROL REFERENCE26953


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