5310-00-444-7986 WASHER,FLAT Index 6640-00-444-8000 TONGS,LABORATORY

National Stock Number:
5310-00-444-7987

Federal Supply Class:
5310

National Item Identification Number:
004447987

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:
592361-133B1R2BELL BOEING JOINT PROJECT OFFICE
592361-1373030HAMILTON SUNDSTRAND CORPORATION
TRB142360380TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT
7T1-007-906370210HONEYWELL INTERNATIONAL INC.


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