4920-01-030-0283 FIXTURE,ENGINE MAINTENANCE,AIRCR Index 1020-01-030-0286 ADAPTER,SEAL

National Stock Number:
5310-01-030-0285

Federal Supply Class:
5310

National Item Identification Number:
010300285

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:
300978410001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
HOLE DIAMETER0.500 INCHES MINIMUM AND 0.501 INCHES MAXIMUM
OUTSIDE DIAMETER1.244 INCHES MINIMUM AND 1.246 INCHES MAXIMUM
SHOULDER DIAMETER0.744 INCHES MINIMUM AND 0.746 INCHES MAXIMUM
SHOULDER HEIGHT0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM
SPECIAL FEATURESMATERIAL THICKNESS:0.125 IN. NOMINAL; MATERIAL:COPPER ALLOY 670; MATERIAL DOCUMENT AND CLASSIFICATION:FEDERAL SPEC SINGLE MATERIAL RESPONSE QQ-B-728,CLASS B, 1/2 HARD
STYLE DESIGNATORSHOULDERED


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