3120-00-937-0729 BEARING,PLAIN,ROD END Index 3110-00-937-0738 BEARING,ROLLER,NEEDLE

National Stock Number:
5310-00-937-0730

Federal Supply Class:
5310

National Item Identification Number:
009370730

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:
153-0111-00394756THE BOEING COMPANY
LD153-0002-210143999THE BOEING COMPANY


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
FEATURES PROVIDEDCASEHARDENED
HOLE DIAMETER0.149 INCHES NOMINAL
OVERALL DIAMETER0.276 INCHES MINIMUM AND 0.301 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6721 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 321 OVERALL
PERIPHERAL SHAPE STYLEROUND
SPECIAL FEATURESDYED GREEN
THICKNESS0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM


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