5306-01-318-3285 BOLT,EXTERNALLY RELIEVED BODY Index 5305-01-318-3287 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5306-01-318-3286

Federal Supply Class:
5306

National Item Identification Number:
013183286

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:
147C608H0148306NORTHROP GRUMMAN SUPPORT SERVICES CORP
147C608H0197942NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
CONCENTRIC HOLE DEPTH0.310 INCHES NOMINAL
CONCENTRIC HOLE DIAMETER0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM
FASTENER LENGTH2.120 INCHES NOMINAL
HEAD DIAMETER1.500 INCHES NOMINAL
HEAD HEIGHT0.260 INCHES NOMINAL
HEAD STYLEFILLISTER
INTERNAL THREAD CLASS2B COUNTERBORE
INTERNAL THREAD DIRECTIONRIGHT-HAND COUNTERBORE
INTERNAL THREAD LENGTH0.250 INCHES NOMINAL COUNTERBORE
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 COND. A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES
NOMINAL THREAD SIZE0.190 INCHES COUNTERBORE
SHOULDER DIAMETER1.000 INCHES NOMINAL
SHOULDER LENGTH1.240 INCHES NOMINAL
STYLE DESIGNATORCOUNTERBORE THREADED
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.785 INCHES NOMINAL
THREAD QUANTITY PER INCH16
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD SERIESUNF COUNTERBORE
THREADS PER INCH32 COUNTERBORE


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