5310-00-595-6116 WASHER,FLAT Index 5310-00-595-6129 NUT,PLAIN,HEXAGON

National Stock Number:
5310-00-595-6125

Federal Supply Class:
5310

National Item Identification Number:
005956125

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:
27217630201TREGO INC
27217677445RTX CORPORATION
27217681924ATOMIC ENERGY COMMISSION OAK RIDGE OPNS OFFICE
272176JA269TOKYO JUDOI KOGYO K.K.
272176S0554TOKYO JUDOGI KOGYO CO.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING76.0 ROCKWELL SUPERFICIAL 30-T MINIMUM OR 83.0 ROCKWELL SUPERFICIAL 30-T MAXIMUM
HOLE DIAMETER0.256 INCHES MINIMUM AND 0.276 INCHES MAXIMUM
OVERALL DIAMETER0.412 INCHES MINIMUM AND 0.430 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5045 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1020 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTCADMIUM OVERALL
THICKNESS0.028 INCHES MINIMUM AND 0.035 INCHES MAXIMUM


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