5307-00-208-8127 STUD,RECESSED AND STEPPED Index 5307-00-208-8131 STUD,SHOULDERED AND STEPPED

National Stock Number:
5307-00-208-8129

Federal Supply Class:
5307

National Item Identification Number:
002088129

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:
AN16377688044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE


Techincal Specification:
DIAMETER OF RECESSED PORTION OF SHANK0.246 INCHES MINIMUM AND 0.250 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 SHANK0.625 INCHES NOMINAL
OVERALL LENGTH2.844 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6320 ASSN STD SINGLE MATERIAL RESPONSE
MATERIALSTEEL COMP 8735
NOMINAL THREAD SIZE0.250 INCHES NUT THREAD
NOMINAL THREAD SIZE0.312 INCHES STUD THREAD
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A NUT THREAD
THREAD LENGTH0.562 INCHES NOMINAL NUT THREAD
THREAD LENGTH0.469 INCHES NOMINAL STUD THREAD
THREAD QUANTITY PER INCH18 STUD THREAD
THREAD QUANTITY PER INCH28 NUT THREAD
THREAD PITCH DIAMETERS+0.2870 TO 0.2885 INCHES STUD THREAD
THREAD SERIES DESIGNATORUNF NUT THREAD
THREAD SERIES DESIGNATORUNS STUD THREAD


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