5310-01-369-5519 NUT,PLAIN,BARREL Index 5310-01-369-5521 WASHER,SPRING TENSION

National Stock Number:
5310-01-369-5520

Federal Supply Class:
5310

National Item Identification Number:
013695520

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:
A02L1319-607RP9JOINT OIL ANALYSIS PROGRAM DBA DEPARTMENT OF DEFENSE
A02L1319-677272THE BOEING COMPANY
A02L1319-696916FLEET READINESS CENTER EAST DIV DEPARTMENT OF NAVY


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER3.180 INCHES MINIMUM AND 3.185 INCHES MAXIMUM
OVERALL DIAMETER4.060 INCHES MINIMUM AND 4.065 INCHES MAXIMUM
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.199 INCHES NOMINAL


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