5310-01-141-7923 NUT,PLAIN,BLIND RIVET Index 5310-01-141-7927 WASHER,FLAT

National Stock Number:
5310-01-141-7926

Federal Supply Class:
5310

National Item Identification Number:
011417926

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:
5710-94-4086928SEASTROM MANUFACTURING CO INC
H40-0002-00514304L3HARRIS TECHNOLOGIES, INC.
H40-0002-00573734FEDERAL SCREW PRODUCTS INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.499 INCHES MINIMUM AND 0.509 INCHES MAXIMUM
OVERALL DIAMETER0.741 INCHES MINIMUM AND 0.761 INCHES MAXIMUM
MATERIALSTEEL CORROSION RESISTING OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-N-290,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTNICKEL OVERALL
THICKNESS0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM


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