5330-00-370-7106 SEAL,AIR INLET DUCT Index 5306-00-370-7109 BOLT

National Stock Number:
5306-00-370-7108

Federal Supply Class:
5306

National Item Identification Number:
003707108

Description:
BOLT,INTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see BOLT, FLUID PASSAGE.


Manufacturer Information:
89LM1711-126512NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
CONCENTRIC HOLE DIAMETER0.747 INCHES MINIMUM AND 0.758 INCHES MAXIMUM
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER2.930 INCHES NOMINAL FIRST HOLE
FASTENER LENGTH3.219 INCHES NOMINAL
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.312 INCHES NOMINAL
HEAD STYLEHEXAGON
MATERIALSTEEL COMP E4340 OR STEEL COMP 4340 OVERALL
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER1.250 INCHES
SHANK UNTHREADED HOLE DIAMETER0.138 INCHES MINIMUM AND 0.145 INCHES MAXIMUM FIRST HOLE
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.989 INCHES MINIMUM
THREAD QUANTITY PER INCH12
THREAD SERIES DESIGNATORUNF
WIDTH BETWEEN FLATS1.875 INCHES NOMINAL


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