5310-01-097-7689 WASHER,FLAT Index 5305-01-097-7694 SCREW

National Stock Number:
5310-01-097-7691

Federal Supply Class:
5310

National Item Identification Number:
010977691

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:
656-B34-1Y94223SPAENAUR INC DBA SPAENAUR INC.
76894223SPAENAUR INC DBA SPAENAUR INC.
PHC6-4F78357PARKER-HANNIFIN CORPORATION
849257-298749SACRAMENTO AIR LOGISTICS CENTER SM-ALC/LIIL


Techincal Specification:
MATERIALSTEEL OVERALL
SURFACE TREATMENTZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.344 INCHES NOMINAL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER1.250 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.051 INCHES MINIMUM AND
0.080 INCHES MAXIMUM
SPECIAL FEATURESLOW CARBON STEEL PER FED-STD-66


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