4540-01-313-5256 HEATING ELEMENT,ELECTRICAL,NONIMMERSION TYPE Index 5330-01-313-5258 PACKING,PREFORMED

National Stock Number:
5310-01-313-5257

Federal Supply Class:
5310

National Item Identification Number:
013135257

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:
39-28156-182918THE BOEING COMPANY


Techincal Specification:
SPECIAL FEATURESUSED ON KC-135 NHA 35-35575


Click here to Register for Free 30-day Trial