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Cross Reference

These part numbers have the same form, fit, and function as smb587538
Item Number Cage
SMB587538 80063


Other parts in this series

Technical Definition

Washer, Flat, also referenced with federal logistics item name code 13393 - 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.


Description: Flat Washer
Mfr. Cage 80063


Hole Diameter: 25/64", Thickness: 1/64", Overall Diameter: 11/16", steel comp 304 overall

AAGR Cross Sectional Shape
AAUB Hole Diameter
0.390 inches
ABMW Edge Shape
ABMX Center Hole Shape
1 round
ABMX Center Hole Shape
ABNM Thickness
0.016 inches
ADAV Overall Diameter
0.687 inches
MATT Material
Steel comp 304
MDCL Material Spec
Qq-s-766,cond a,fin 2b fed spec single material response
SFTT Surface Treatment
STDC Surface Treatment Spec
Mil-f-14072,finish e300 mil spec single treatment response
National Stock Number (NSN): 5310-00-001-4700

Last Modified: 02/14/2017