4710-01-265-6068 TUBE ASSEMBLY,METAL Index 8135-01-265-6070 CUSHION,TOP ASSEMBL

National Stock Number:
5310-01-265-6069

Federal Supply Class:
5310

National Item Identification Number:
012656069

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:
S2431218-17C25-G88277THE BOEING COMPANY


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER1.077 INCHES NOMINAL
OVERALL DIAMETER1.557 INCHES MINIMUM AND 1.582 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6721,TYPE CB MIL SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.063 INCHES NOMINAL


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