3120-00-919-8910 BEARING,PLAIN,SELF-ALIGNING Index 3040-00-919-8912 SHAFT,SHOULDERED

National Stock Number:
5310-00-919-8911

Federal Supply Class:
5310

National Item Identification Number:
009198911

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:
VS15305C3032-1277272THE BOEING COMPANY


Techincal Specification:
MATERIALSTEEL CORROSION RESISTING OR
STEEL COMP 321 OR
STEEL COMP 347 OR
STEEL COMP 348 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE AND
MIL-S-6721 MIL SPEC 2ND MATERIAL RESPONSE AND
MIL-S-6721 MIL SPEC 3RD MATERIAL RESPONSE AND
MIL-S-6721 MIL SPEC 4TH MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.318 INCHES MINIMUM AND
0.338 INCHES MAXIMUM
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER0.740 INCHES MINIMUM AND
0.760 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.022 INCHES MINIMUM AND
0.042 INCHES MAXIMUM
THE MANUFACTURERS DATA
MANUFACTURERS CODE77272
DESIGN CONTROL REFERENCEVS15305C3032-12


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