5310-01-142-4849 WASHER,FLAT Index 5310-01-142-4851 WASHER,FLAT

National Stock Number:
5310-01-142-4850

Federal Supply Class:
5310

National Item Identification Number:
011424850

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:
732025-8873030HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING79.5 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 82.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM
HOLE DIAMETER0.2497 INCHES MINIMUM AND 0.2507 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5519 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 301 OVERALL
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
THICKNESS0.0275 INCHES MINIMUM AND 0.0285 INCHES MAXIMUM


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