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National Stock Number:
5307-00-941-3123
Federal Supply Class:
5307
National Item Identification Number:
009413123
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:
| BACS21CH9 | 81205 | THE BOEING COMPANY |
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Techincal Specification:
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL COMP 8740 | | NOMINAL THREAD SIZE | 0.312 INCHES NUT THREAD | | NOMINAL THREAD SIZE | 0.375 INCHES STUD THREAD | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD DIRECTION | RIGHT-HAND NUT THREAD | | THREAD DIRECTION | RIGHT-HAND STUD THREAD | | THREAD CLASS | 3A NUT THREAD | | THREAD LENGTH | 0.750 INCHES MINIMUM STUD THREAD | | THREAD LENGTH | 0.625 INCHES MINIMUM NUT THREAD | | THREAD PITCH DIAMETERS | +0.3392 TO 0.3407 INCHES STUD THREAD | | THREAD SERIES DESIGNATOR | UNC STUD THREAD | | THREAD SERIES DESIGNATOR | UNJF NUT THREAD | | THREAD QUANTITY PER INCH | 16 STUD THREAD | | THREAD QUANTITY PER INCH | 24 NUT THREAD |
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