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National Stock Number:
5307-00-208-5928
Federal Supply Class:
5307
National Item Identification Number:
002085928
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.
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Manufacturer Information:
| AN164069 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |
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Techincal Specification:
| DIAMETER OF RECESSED PORTION OF SHANK | 0.308 INCHES MINIMUM AND 0.312 INCHES MAXIMUM | | DISTANCE ACROSS FLATS | 0.250 INCHES NOMINAL | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM | | LENGTH OF RECESSED PORTION OF SHANK | 0.626 INCHES NOMINAL | | OVERALL LENGTH | 2.938 INCHES NOMINAL | | MATERIAL | STEEL | | NOMINAL THREAD SIZE | 0.312 INCHES NUT THREAD | | NOMINAL THREAD SIZE | 0.375 INCHES STUD THREAD | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3A NUT THREAD | | THREAD LENGTH | 0.562 INCHES MINIMUM STUD THREAD | | THREAD LENGTH | 0.625 INCHES MINIMUM NUT THREAD | | THREAD QUANTITY PER INCH | 16 STUD THREAD | | THREAD QUANTITY PER INCH | 24 NUT THREAD | | THREAD PITCH DIAMETERS | +0.3422 TO 0.3437 INCHES STUD THREAD | | THREAD SERIES DESIGNATOR | UNF NUT THREAD | | THREAD SERIES DESIGNATOR | UNS STUD THREAD |
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