5310-01-220-3101 WASHER,FLAT Index 5310-01-220-3103 WASHER,FLAT

National Stock Number:
5310-01-220-3102

Federal Supply Class:
5310

National Item Identification Number:
012203102

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:
S8154-82C0252N935BOEING DISTRIBUTION SERVICES X, INC.
S8154-82C02570210HONEYWELL INTERNATIONAL INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.525 INCHES MINIMUM AND 0.535 INCHES MAXIMUM
OVERALL DIAMETER1.110 INCHES MINIMUM AND 1.124 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059,COND 1/4 HARD MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5059,COND 1/2 HARD MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5059,COND HARD MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5059,COND 1/4 HARD,FINISH NO. 2B MIL SPEC 2ND MATERIAL RESPONSE OR ASTM A582 ASSN STD 3RD MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE FINISH63.0 MICROINCHES BOTTOM
SURFACE FINISH63.0 MICROINCHES TOP
THICKNESS0.025 INCHES NOMINAL


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