5360-01-483-4055 SPRING,HELICAL,COMPRESSION Index 5315-01-483-4057 KEY,MACHINE

National Stock Number:
5310-01-483-4056

Federal Supply Class:
5310

National Item Identification Number:
014834056

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:
5D87090-00190099NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.688 INCHES NOMINAL
OVERALL DIAMETER0.937 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS6415 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4340 OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.120 INCHES NOMINAL


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