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Flat Washer
Model 58A164B128
Quick Information about 58A164B128
Steel comp 301 overall or steel comp 302 overall material, passivate overall surface treatment.
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Product Details
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NSN:5310-00-952-7104 (5310009527104)
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Cross Shape:Rectangular
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Hole Diameter:Between 1.520 inches and 1.540 inches
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Edge Shape:Round
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Center Shape:1 round
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Thickness:Between 0.027 inches and 0.035 inches
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Overall Diameter:2.280 inches
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Material Specification:Qq-s-766, 1/2 hard federal specification all material responses
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Surface Specification:Qq-p-35 federal specification single treatment response
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Schedule B Code:7318220000
Classification
Washers other than lock washers, iron or steel
Definition Flat Washer
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.
Part Identification
Part Materials
Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicatorsPackaging & Shipping
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