5310-14-335-4881 WASHER,FLAT Index 5306-14-335-4937 PIN,HEADED,THREADED

National Stock Number:
5310-14-335-4882

Federal Supply Class:
5310

National Item Identification Number:
143354882

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:
33489-79BCLEF0188BLANC AERO INDUSTRIES - GROUPE LISIAEROSPACE
33489-79BCLEF6117DASSAULT AVIATION
33489BC079LEF6117DASSAULT AVIATION


Techincal Specification:
III HEAT TREATMENTAS FABRICATED
III MINIMUM TENSILE STRENGTH880 NEWTONS PER SQUARE MILLIMETER
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER16.785 MILLIMETERS NOMINAL AND 17.215 MILLIMETERS MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNF L 09-753 ODE LE NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCHROMATE OVERALL AND CHROMATE OVERALL
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER8.10 MILLIMETERS MINIMUM AND 8.25 MILLIMETERS MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONF3025 MIL STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 35NC6 OVERALL


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