5310-14-250-4986 WASHER,FLAT Index 5310-14-250-5002 WASHER,FLAT

National Stock Number:
5310-14-250-4992

Federal Supply Class:
5310

National Item Identification Number:
142504992

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:
23112DG100AF0111BUREAU NORMALISATION AERONAUTIQUEESPACE
23112DG100AF0188BLANC AERO INDUSTRIES - GROUPE LISIAEROSPACE
23112DG100AF0434ALIGN AEROSPACE FRANCE SAS
L23112-100DGAF0111BUREAU NORMALISATION AERONAUTIQUEESPACE


Techincal Specification:
DIAMETER10.25 MILLIMETERS NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONF3025 AIR 9048 MIL STD SINGLE MATERIAL RESPONSE
MATERIALALUMINUM ALLOY 2024
OVERALL DIAMETER20.0 MILLIMETERS NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNF L 09-753 CODE A NATIONAL SPEC SINGLE TREATMENT RESPONSE
THICKNESS2.0 MILLIMETERS NOMINAL


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