BOLT
P/N 68A411041-2001
NSN 5306 00 332 7257
MFG BOEING
NEW GOV SURPLUS
SUPPLIER CAGE CODE 03EF7
ITEM NAME:   BOLT,CLOSE TOLERANC
DEFINITION:  An externally threaded fastener whose unthreaded portion is of a

             specified grip length, plated or unplated, and is machined to a

             tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a

             specific diameter for items one inch (25 mm) or less in diameter.

             Items over one inch (25 mm) in diameter shall have a tolerance of

             fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The

             nominal major diameter of the threads shall be at least one thousandth

             (0.001) of an inch (0.025 mm) below the minimum shank diameter, but

             not below the minimum major diameter for applicable class of fit, as

             shown in the Screw Thread Standards, FED STD H28 and/or other

             nationally recognized standards. The head is not designed to be held

             or driven with an inserted driver, nor is it designed for rotation by

             the thumb and fingers. A locking feature may be incorporated in the

             design of the head or threads. For items having close tolerance, and

             fabricated from material having 160,000 pounds per square inch (1100

             megapascals) minimum tensile strength, see BOLT, SHEAR. For items

             fabricated from material having less than 160,000 pounds per square

             inch (1100 megapascals) minimum tensile strength and not having a

             close tolerance, see BOLT, MACHINE.
CHARACTERISTIC                          VALUE
THREAD CLASS                            3A                                               
THREAD DIRECTION                        RIGHT-HAND                                       
THREAD LENGTH                           0.360 INCHES MINIMUM AND 0.509 INCHES MAXIMUM    
FASTENER LENGTH                         6.767 INCHES NOMINAL                             
HEAD STYLE                              HEXAGON                                          
HEAD HEIGHT                             0.266 INCHES NOMINAL                             
WIDTH BETWEEN FLATS                     0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM    
GRIP DIAMETER                           0.4990 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM  
SHANK UNTHREADED HOLE                   0.106 INCHES NOMINAL FIRST HOLE                  
DIAMETER                                                                                 
NOMINAL THREAD DIAMETER                 0.500 INCHES                                     
THREAD QUANTITY PER INCH                20                                               
DISTANCE FROM HEAD LARGEST              6.626 INCHES NOMINAL FIRST HOLE                  
BEARING SURFACE TO SHANK                                                                 
HOLE CENTER                                                                              
SPECIAL FEATURES                        TOP OF HEAD AND THREADED END BOTTOM DRILLED ALONG

                                        LONGITUDINAL AXIS 0.073 IN. MIN,0.083 IN. MAX DEEP

                                        BY 0.173 IN. DIA WITH 60 DEGREE COUNTERSINK BOTH 

                                        ENDS                                              
MATERIAL                                STEEL COMP XM-13 OVERALL                         
MATERIAL DOCUMENT AND                   AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CLASSIFICATION                                                                           
SURFACE TREATMENT                       PASSIVATE OVERALL                                 
DESIGN CONTROL REFERENCE                68A411041-2001                                   
THE MANUFACTURERS DATA                  76301                                            
MANUFACTURERS CODE                                                                        
SURFACE TREATMENT DOCUMENT              68A900000 FSCM 76301 MFR REF SINGLE TREATMENT    
AND CLASSIFICATION                      RESPONSE OVERALL                                 
THREAD SERIES DESIGNATOR                UNJF