5306-00-655-7509 BOLT,MACHINE Index 5310-00-655-7513 NUT,SELF-LOCKING,PLATE

National Stock Number:
5310-00-655-7511

Federal Supply Class:
5310

National Item Identification Number:
006557511

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:
10594611-1718876U S ARMY AVIATION AND MISSILE COMMAND
106447228527L3HARRIS TECHNOLOGIES, INC.
1064472G00128527L3HARRIS TECHNOLOGIES, INC.
11588659-319207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
235-1-63188818KEARFOTT CORPORATION
682-2-1180-350237CAE USA INC.
752-5581-862143NORTHERN TELECOM INC TELECOM DISTRIBUTION DIV
86-800141ROLLER BEARING CO OF AMERICA, INC
G69-800328DESIGNATRONICS INCORPORATED
SWSS1208-02QR19315HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS FORMER BENDIX NAVIGATION AND CONTROL SYSTEMS
SWSS1208-02QR55972HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.187 INCHES NOMINAL
OVERALL DIAMETER0.250 INCHES NOMINAL
MATERIALSTEEL CORROSION RESISTING OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.031 INCHES NOMINAL


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