5310-01-522-6367 WASHER,FLAT Index 5310-01-522-6369 WASHER,FLAT

National Stock Number:
5310-01-522-6368

Federal Supply Class:
5310

National Item Identification Number:
015226368

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:
BACW10BR31881205THE BOEING COMPANY


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER1.216 INCHES MINIMUM AND 1.226 INCHES MAXIMUM
OVERALL DIAMETER1.750 INCHES MINIMUM AND 1.770 INCHES MAXIMUM
MATERIALSTEEL COMP 631 OVERALL
PERIPHERAL SHAPE STYLEROUND
SPECIAL FEATURESHEAT TREATED TO TH1050 CONDITION; INTENDED FOR USE WITH TAPER SHANK FASTENERS AND TITANIUM STRUCTURE
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM


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