5310-01-255-0118 WASHER,FLAT Index 5310-01-255-0120 WASHER,FLAT

National Stock Number:
5310-01-255-0119

Federal Supply Class:
5310

National Item Identification Number:
012550119

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:
5710-6-7P86928SEASTROM MANUFACTURING CO INC
911625-706481NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766,COND A FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 302 OVERALL
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER0.148 INCHES MINIMUM AND 0.168 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.007 INCHES NOMINAL


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