2540-01-479-8237 VENTILATOR,AIR CIRCULATING Index 5365-01-479-8239 SPACER,SLEEVE

National Stock Number:
5310-01-479-8238

Federal Supply Class:
5310

National Item Identification Number:
014798238

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:
541 PC NO. 6078S5BAIER HATCH CO INC


Techincal Specification:
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
SPECIAL FEATURESCOMPANY NAME: CENTER BOLT WASHER


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