5310-01-161-5513 WASHER,FLAT Index 5310-01-161-5515 WASHER,LOCK

National Stock Number:
5310-01-161-5514

Federal Supply Class:
5310

National Item Identification Number:
011615514

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:
K33170-107639GE AVIATION SYSTEMS LLC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.250 INCHES MINIMUM AND 0.255 INCHES MAXIMUM
OVERALL DIAMETER0.665 INCHES MINIMUM AND 0.675 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 303 OR STEEL COMP 303SE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION101163,FSCM 07639 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM


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