5310-01-132-8560 WASHER,FLAT Index 5310-01-132-8562 WASHER,CONCAVE

National Stock Number:
5310-01-132-8561

Federal Supply Class:
5310

National Item Identification Number:
011328561

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:
10109665A486GNIMIKKEISTOKESKUS NCB FINLAND
1B48091-118355THE BOEING COMPANY


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.190 INCHES MINIMUM AND 0.199 INCHES MAXIMUM
OVERALL DIAMETER0.580 INCHES MINIMUM AND 0.600 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/8,T651 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 6061 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONPS13201,TYPE 2,CLASS 1,FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTANODIZE OVERALL
THICKNESS0.045 INCHES MINIMUM AND 0.065 INCHES MAXIMUM


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