5310-01-253-3156 WASHER,FLAT Index 5310-01-253-3158 WASHER,FLAT

National Stock Number:
5310-01-253-3157

Federal Supply Class:
5310

National Item Identification Number:
012533157

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:
00004-002-0259260RACON INC
1002535361C19MIL-COTS CORPORATION
12759-001660Y3H3FASTENAL COMPANY
32823-A45152OSHKOSH CORP
32823AX45152OSHKOSH CORP
32823AX75Q65OSHKOSH DEFENSE LLC
710180Y3H3FASTENAL COMPANY
5710-86-6086928SEASTROM MANUFACTURING CO INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.390 INCHES MINIMUM AND 0.400 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 302 OVERALL
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM
THICKNESS0.060 INCHES NOMINAL


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