5307-00-149-5254 STUD,RECESSED AND STEPPED Index 5307-00-149-5256 STUD,STEPPED

National Stock Number:
5307-00-149-5255

Federal Supply Class:
5307

National Item Identification Number:
001495255

Description:
STUD,RECESSED AND 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 UNTHREADED SECTION MUST HAVE MORE THAN ONE DIAMETER, NONE OF WHICH MAY BE LARGER THAN THE MAXIMUM MAJOR DIAMETER OF THE LARGER THREAD. IT MAY BE THREAD RELIEVED. EXCLUDES ITEMS WITH TAPERED THREADS.


Manufacturer Information:
2143H1650AHP5CURTISS-WRIGHT CONTROLS, INC.


Techincal Specification:
DIAMETER OF RECESSED PORTION OF SHANK0.180 INCHES MINIMUM AND 0.184 INCHES MAXIMUM
DISTANCE ACROSS FLATS0.200 INCHES NOMINAL
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
LENGTH OF RECESSED PORTION OF SHANK0.430 INCHES MINIMUM AND 0.540 INCHES MAXIMUM
OVERALL LENGTH2.080 INCHES MINIMUM AND 2.120 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6320 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6382 ASSN STD 2ND MATERIAL RESPONSE
MATERIALSTEEL COMP 8735 OR STEEL COMP 4140
NOMINAL THREAD SIZE0.250 INCHES NUT THREAD
SPECIAL FEATURESSTUD END THREAD 0.003 IN. OVERSIZE
STYLE DESIGNATORRECESSED AND STEPPED
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A NUT THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD LENGTH0.430 INCHES MINIMUM AND 0.470 INCHES MAXIMUM STUD THREAD
THREAD LENGTH0.510 INCHES MINIMUM AND 0.570 INCHES MAXIMUM NUT THREAD
THREAD PITCH DIAMETERS+0.2847 TO 0.2857 INCHES STUD THREAD
THREAD QUANTITY PER INCH28 NUT THREAD
THREAD SERIES DESIGNATORUNS STUD THREAD


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