5310-01-105-0277 WASHER,FLAT Index 5307-01-105-0279 STUD,STEPPED

National Stock Number:
5307-01-105-0278

Federal Supply Class:
5307

National Item Identification Number:
011050278

Description:
STUD,STEPPED

Detail:
A HEADLESS FASTENER NOT EXCEEDING 12 INCHES (304.8 MM) IN LENGTH, THREADED EXTERNALLY ON BOTH ENDS ON WHICH THE NOMINAL DIAMETER OF ONE THREADED SECTION IS GREATER THAN THE OTHER. THE ENTIRE UNTHREADED PORTION MUST BE OF A SINGLE DIAMETER EQUAL TO OR SMALLER THAN THE MAXIMUM MAJOR DIAMETER OF THE LARGER THREADED END. INCLUDES RADIAL GROOVES OR THREAD RELIEFS. EXCLUDES ITEMS WITH TAPERED THREADS.


Manufacturer Information:
6784209P001563005ROLLS-ROYCE CORPORATION
6784209P001573342ALLISON TRANSMISSION INC


Techincal Specification:
MATERIALSTEEL
MATERIAL DOCUMENT AND CLASSIFICATIONEMS85010,FSCM 24617 MFR REF SINGLE MATERIAL RESPONSE
SURFACE TREATMENTCADMIUM NUT THD
CADMIUM SHANK
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE NUT THD
AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE SHANK
STYLE DESIGNATORSTEPPED
SHANK DIAMETER0.240 INCHES MINIMUM AND
0.260 INCHES MAXIMUM
OVERALL LENGTH3.452 INCHES MINIMUM AND
3.472 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF NUT THREAD
UNS STUD THREAD
NOMINAL THREAD SIZE0.312 INCHES NUT THREAD
0.375 INCHES STUD THREAD
THREAD CLASS3A NUT THREAD
THREAD QUANTITY PER INCH24 NUT THREAD
16 STUD THREAD
THREAD LENGTH0.521 INCHES MINIMUM AND
0.541 INCHES MAXIMUM NUT THREAD
0.615 INCHES MINIMUM AND
0.635 INCHES MAXIMUM STUD THREAD
SPECIAL FEATURESTHD 0.0015 IN. OVERSIZE
CRITICALITY CODE JUSTIFICATIONFEAT
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND
32.0 ROCKWELL C MAXIMUM
DISTANCE FROM COTTER PIN HOLE CENTERLINE TO NUT END0.084 INCHES MINIMUM AND
0.104 INCHES MAXIMUM FIRST HOLE
COTTER PIN HOLE DIAMETER0.065 INCHES MINIMUM AND
0.072 INCHES MAXIMUM FIRST HOLE
SURFACE FINISH63.0 MICROINCHES OVERALL


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