5310-01-191-0452 WASHER,FLAT Index 5310-01-191-0454 WASHER,BEVEL

National Stock Number:
5310-01-191-0453

Federal Supply Class:
5310

National Item Identification Number:
011910453

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:
1S-765-5B PIECE 2485130FLOWSERVE CORPORATION DIV FLOWSERVE US INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
FEATURES PROVIDEDCASEHARDENED
HARDNESS RATING800.0 BRINELL MINIMUM
HOLE DIAMETER4.640 INCHES MINIMUM AND 4.650 INCHES MAXIMUM
OVERALL DIAMETER5.250 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1040 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE FINISH63.0 MICROINCHES BOTTOM
SURFACE FINISH63.0 MICROINCHES TOP
THICKNESS0.149 INCHES MINIMUM AND 0.159 INCHES MAXIMUM


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