3120-00-520-8958 BUSHING,SLEEVE Index 3120-00-520-8960 BUSHING,SLEEVE

National Stock Number:
5310-00-520-8959

Federal Supply Class:
5310

National Item Identification Number:
005208959

Description:
WASHER,SHOULDERED

Detail:
A WASHER, ROUND IN SHAPE, AND HAVING A CENTRALLY LOCATED HOLE. ONE BEARING SURFACE IS FLAT AND UNBROKEN, THE OTHER SURFACE IS IN THE FORM OF A RAISED SHOULDER (BOSS) HAVING A FLAT BEARING SURFACE. THE THICKNESS OF THE SHOULDER (BOSS) MUST NOT EXCEED 25 PERCENT OF THE SHOULDER (BOSS) DIAMETER. FOR ITEMS HAVING A SHOULDER (BOSS) OF GREATER THICKNESS, USE BEARING, SLEEVE; BUSHING SLEEVE; OR SPACER, SLEEVE. EXCLUDES INSULATOR, WASHER AND THRUST TYPE WASHERS.


Manufacturer Information:
175187-398897LOCKHEED MARTIN CORP


Techincal Specification:
HOLE DIAMETER3.7500 INCHES MINIMUM AND 3.7512 INCHES MAXIMUM
OUTSIDE DIAMETER4.250 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.060 INCHES MINIMUM AND 0.065 INCHES MAXIMUM
MATERIALCOPPER OVERALL
SHOULDER DIAMETER3.9398 INCHES MINIMUM AND 3.9410 INCHES MAXIMUM
SHOULDER HEIGHT0.438 INCHES NOMINAL
STYLE DESIGNATORSHOULDERED
SURFACE FINISH100.0 MICROINCHES ALL SURFACES


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