5340-99-316-3361 BRACKET,MOUNTING Index 1560-99-316-3419 HEAT SHIELD,SPECIAL

National Stock Number:
5310-99-316-3367

Federal Supply Class:
5310

National Item Identification Number:
993163367

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:
SUM3992-4K5294GE AVIATION SYSTEMS LIMITED


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.130 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONBS 1449 302S25 HARD NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE
MATERIALSTEEL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONSMITHS INDUSTRIES 0722-568 MFR REF SINGLE TREATMENT RESPONSE
SURFACE TREATMENTPASSIVATE
THICKNESS0.028 INCHES NOMINAL


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