5310-01-210-7445 WASHER,FLAT Index 5310-01-210-7447 WASHER,FLAT

National Stock Number:
5310-01-210-7446

Federal Supply Class:
5310

National Item Identification Number:
012107446

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:
1292800-11198897LOCKHEED MARTIN CORP


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
COLORWHITE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.328 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-18729,COND N MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR LC+73-2020,FSCM 36659 MFR REF 2ND MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4130 OVERALL OR STEEL OVERALL
III MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER1.190 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION595,COLOR NO. 17875 FED STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPAINT OVERALL
THICKNESS0.063 INCHES NOMINAL


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