7035-00-205-8739 RACK,STORAGE,DATA TAPE Index 5310-00-205-8744 WASHER,FLAT

National Stock Number:
5310-00-205-8740

Federal Supply Class:
5310

National Item Identification Number:
002058740

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:
1243603-455972HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS
23394256232LOCKHEED MARTIN CORPORATION
44063782577RAYTHEON COMPANY
5710-3786928SEASTROM MANUFACTURING CO INC
5710-37-15P86928SEASTROM MANUFACTURING CO INC
872017576GOODRICH CORP DBA GOODRICH CORP
911625-4906481NORTHROP GRUMMAN SYSTEMS CORPORATION
CYRD836-305624GE AVIATION SYSTEMS LLC
FF-W-9281348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CRITICALITY CODE JUSTIFICATIONFEAT
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING25.0 ROCKWELL C MINIMUM
HOLE DIAMETER0.189 INCHES MINIMUM AND 0.194 INCHES MAXIMUM
OVERALL DIAMETER0.266 INCHES MINIMUM AND 0.297 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766,CLASS 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 304 OVERALL
PERIPHERAL SHAPE STYLEROUND
SPECIAL FEATURESFLIGHT SAFETY CRITICAL AIRCRAFT PART
THICKNESS0.016 INCHES NOMINAL


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