5310-00-245-5452 WASHER,FLAT Index 5310-00-245-5456 WASHER,KEYWAY

National Stock Number:
5310-00-245-5455

Federal Supply Class:
5310

National Item Identification Number:
002455455

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:
59613D92679NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING57.0 ROCKWELL B MINIMUM AND 75.0 ROCKWELL B MAXIMUM
HOLE DIAMETER0.125 INCHES NOMINAL
OVERALL DIAMETER0.417 INCHES MINIMUM AND 0.422 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 268 OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.050 INCHES MINIMUM AND 0.055 INCHES MAXIMUM


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