3120-00-771-2546 BUSHING,SPRING EYE Index 1680-00-771-2549 STACK ASSEMBLY

National Stock Number:
5306-00-771-2548

Federal Supply Class:
5306

National Item Identification Number:
007712548

Description:
BOLT,RIBBED SHOULDER

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also BOLT, RIBBED NECK.


Manufacturer Information:
2034033116KELSEY-HAYES CO WHEEL DRUM AND BRAKE DIV
37569624617GENERAL MOTORS CORP
47651424617GENERAL MOTORS CORP
37569633116KELSEY-HAYES CO WHEEL DRUM AND BRAKE DIV
3756967X677GENERAL MOTORS LLC
4765147X677GENERAL MOTORS LLC
771254819207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS0.062 INCHES NOMINAL
DISTANCE FROM CENTERLINE TO FLAT0.280 INCHES MINIMUM AND 0.290 INCHES MAXIMUM
FASTENER LENGTH1.312 INCHES MINIMUM AND 1.328 INCHES MAXIMUM
HEAD DIAMETER0.750 INCHES NOMINAL
HEAD HEIGHT0.229 INCHES MINIMUM AND 0.239 INCHES MAXIMUM
MATERIALSTEEL OVERALL
MINIMUM YIELD STRENGTH75000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.437 INCHES
RIB LENGTH0.318 INCHES MINIMUM AND 0.328 INCHES MAXIMUM
RIB MAJOR DIAMETER0.550 INCHES MINIMUM AND 0.560 INCHES MAXIMUM
SHOULDER DIAMETER0.531 INCHES NOMINAL FIRST SHOULDER
SHOULDER LENGTH0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM FIRST SHOULDER
SHOULDER SHAPERIBBED FIRST SHOULDER
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.781 INCHES MINIMUM AND 0.812 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH20


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