5310-01-051-5526 WASHER,FLAT Index 5310-01-051-5531 WASHER,RECESSED

National Stock Number:
5310-01-051-5527

Federal Supply Class:
5310

National Item Identification Number:
010515527

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:
BACW10J481205THE BOEING COMPANY


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.260 INCHES MINIMUM AND 0.300 INCHES MAXIMUM
OVERALL DIAMETER0.850 INCHES MINIMUM AND 0.910 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONHH-C-576,TY 2B,CL 3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCORK OVERALL
PERIPHERAL SHAPE STYLEROUND
SPECIFICATION/STANDARD DATA81205-BACW10J MANUFACTURERS STANDARD
THICKNESS0.120 INCHES NOMINAL


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