5310-14-250-4984 WASHER,FLAT Index 5310-14-250-4992 WASHER,FLAT

National Stock Number:
5310-14-250-4986

Federal Supply Class:
5310

National Item Identification Number:
142504986

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:
23111DG060AF0111BUREAU NORMALISATION AERONAUTIQUEESPACE
23111DG060AF0188BLANC AERO INDUSTRIES - GROUPE LISIAEROSPACE
23111DG060AF1236PREAULT TECHNOLOGIES
23111DG60AF0111BUREAU NORMALISATION AERONAUTIQUEESPACE
L23111-60DGAF0111BUREAU NORMALISATION AERONAUTIQUEESPACE
MDS0060-60DK0058LEONARDO MW LTD


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER6.25 MILLIMETERS MINIMUM AND 6.43 MILLIMETERS MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONF3025 AIR 9048 MIL STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 2024 OVERALL
III HEAT TREATMENTF-AS FABRICATED
III MINIMUM TENSILE STRENGTH440 NEWTONS PER SQUARE MILLIMETER
III MINIMUM YIELD STRENGTH270 NEWTONS PER SQUARE MILLIMETER
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER12.0 MILLIMETERS NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNF L 09-753 CODE A NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTANODIZE OVERALL


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