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National Stock Number:
5307-00-912-8090
Federal Supply Class:
5307
National Item Identification Number:
009128090
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:
| BACS21CHD9 | 81205 | THE BOEING COMPANY |
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Techincal Specification:
| DIAMETER OF RECESSED PORTION OF SHANK | 0.229 INCHES MINIMUM AND 0.233 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 | 0.750 INCHES NOMINAL | | OVERALL LENGTH | 2.750 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL COMP 8740 | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
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