3120-00-618-9442 BEARING,WASHER,THRUST Index 3120-00-618-9447 BUSHING,SLEEVE

National Stock Number:
5310-00-618-9446

Federal Supply Class:
5310

National Item Identification Number:
006189446

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:
30608406090TE CONNECTIVITY CORPORATION
30608477445RTX CORPORATION
35429027068DCP SPRING ACQUISITION COMPANY, INC.
35429031633ALINABAL HOLDINGS CORPORATION
306084JA269TOKYO JUDOI KOGYO K.K.
306084S0554TOKYO JUDOGI KOGYO CO.
35429033615ENJET AERO MANCHESTER LLC
35429051535CREST GOOD MANUFACTURING CO INC
35429077445RTX CORPORATION
CVC754-328E1780378TRIUMPH AEROSTRUCTURES, LLC
35429081924ATOMIC ENERGY COMMISSION OAK RIDGE OPNS OFFICE
354290JA269TOKYO JUDOI KOGYO K.K.
354290S0554TOKYO JUDOGI KOGYO CO.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HEAT TREATMENTF-AS FABRICATED
HOLE DIAMETER0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM
OVERALL DIAMETER0.430 INCHES MINIMUM AND 0.450 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4001 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 1100 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE FINISH63.0 MICROINCHES BOTTOM
SURFACE FINISH63.0 MICROINCHES TOP
THICKNESS0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM


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