5310-00-782-7342 WASHER,FLAT Index 5315-00-782-7344 KEY,MACHINE

National Stock Number:
5310-00-782-7343

Federal Supply Class:
5310

National Item Identification Number:
007827343

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:
24-00081-05500724RAYTHEON COMPANY
950833-406481NORTHROP GRUMMAN SYSTEMS CORPORATION
WC1057-470318ALLMETAL SCREW PRODUCTS CORP


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
COLORBLACK OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM
OVERALL DIAMETER0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
MINIMUM TENSILE STRENGTH60000 POUNDS PER SQUARE INCH
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTOXIDE FILM OVERALL
THICKNESS0.027 INCHES MINIMUM AND 0.048 INCHES MAXIMUM


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