5310-00-465-2712 NUT,PLAIN,HEXAGON Index 3930-00-465-2727 SPRING

National Stock Number:
5310-00-465-2719

Federal Supply Class:
5310

National Item Identification Number:
004652719

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:
AN961-186T80205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
AN961-816T80205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
AN961-816T88044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
AN961-816TA0170LEONARDO SPA AEROSTRUCTURE DIVISION
AN961-816TD9182ZF INDUSTRIEANTRIEBE WITTEN GMBH


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.505 INCHES MINIMUM AND 0.525 INCHES MAXIMUM
OVERALL DIAMETER0.870 INCHES MINIMUM AND 0.895 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-321 1/2 HARD FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-626 1/2 HARD FED SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 270 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-T-10727 TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTTIN OVERALL
THICKNESS0.054 INCHES MINIMUM AND 0.074 INCHES MAXIMUM


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