BOLT
P/N NAS1206-9
NSN 5305-00-815-9424
MFG SPS TECHNOLOGIES
 
NEW GOV SURPLUS
SUPPLIER CAGE CODE 03EF7
 
ITEM NAME:   SCREW,CLOSE TOLERAN
DEFINITION:  A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion
             is of specified grip length, plated or unplated, and is machined to a
             tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a
             specific diameter for items (1.000 IN.) (25 mm) or less in diameter.
             Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of
             fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal
             major diameter of the threads shall be at least one thousandth (0.001
             IN.) (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 designed to be held or driven with an inserted
             driver. It is not designed for rotation by the thumb and fingers. A
             locking feature may be incorporated in the design of the head or
             threads.
            
 
CHARACTERISTIC                          VALUE
THREAD CLASS                            3A                                               
THREAD DIRECTION                        RIGHT-HAND                                       
THREAD LENGTH                           0.366 INCHES MINIMUM AND 0.416 INCHES MAXIMUM    
FASTENER LENGTH                         0.938 INCHES MINIMUM AND 0.968 INCHES MAXIMUM    
HEAD STYLE                              FLAT COUNTERSUNK                                 
HEAD DIAMETER                           0.704 INCHES MINIMUM AND 0.762 INCHES MAXIMUM    
GRIP DIAMETER                           0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM  
INTERNAL DRIVE STYLE                    CROSS RECESS TYPE 1                               
NOMINAL THREAD DIAMETER                 0.375 INCHES                                     
GRIP LENGTH                             0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM    
THREAD QUANTITY PER INCH                24                                                
MINIMUM TENSILE STRENGTH                160000 POUNDS PER SQUARE INCH                    
HARDNESS RATING                         36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C      
                                        MAXIMUM OVERALL                                  
COUNTERSINK ANGLE                       99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM   
MATERIAL                                STEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP
                                        6150 OR STEEL COMP 8735 OR STEEL COMP 8740 OVERALL
MATERIAL DOCUMENT AND                   MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR     
CLASSIFICATION                          MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR     
                                        MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OR     
                                        MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR     
                                        MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE OVERALL
SURFACE TREATMENT                       CADMIUM AND CHROMATE OVERALL                     
SURFACE TREATMENT DOCUMENT              QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT     
AND CLASSIFICATION                      RESPONSE OVERALL                                  
THREAD SERIES DESIGNATOR                UNF                                              
SPECIFICATION/STANDARD DATA             80205-NAS1206 PROFESSIONAL/INDUSTRIAL ASSOCIATION
                                        STANDARD