5310-01-100-2671 WASHER,FLAT Index 5310-01-100-2673 WASHER,FLAT

National Stock Number:
5310-01-100-2672

Federal Supply Class:
5310

National Item Identification Number:
011002672

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:
65102-11561-10378286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,COMP 440C,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER1.080 INCHES NOMINAL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER2.125 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.050 INCHES NOMINAL
HARDNESS RATING56.0 ROCKWELL C MINIMUM AND
60.0 ROCKWELL C MAXIMUM
THE MANUFACTURERS DATA
MANUFACTURERS CODE78286
DESIGN CONTROL REFERENCE65102-11561-103


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