STUD
P/N 877B-3SD-16
P/N S234A1-15-510A
NSN 5307 00 898 8398
MFG ALCOA GLOBAL FASTENERS
 
NEW GOV SURPLUS
 
ITEM NAME   STUD,LOCKED IN
DEFINITION  A headless fastener externally threaded on both ends with each
             threaded portion of one but not necessarily the same nominal diameter.
             It is designed to be locked in place by either a RING, LOCK, SERRATED
             or a RING, LOCK, KEYED.
            
 
CHARACTERISTIC                          VALUE
THREAD CLASS                            3A NUT THREAD 3A STUD THREAD                     
THREAD DIRECTION                        RIGHT-HAND NUT THREAD RIGHT-HAND STUD THREAD     
THREAD LENGTH                           0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM NUT
                                        THREAD 0.270 INCHES MINIMUM AND 0.280 INCHES     
                                        MAXIMUM STUD THREAD                              
LOCKING FEATURE                         RING, LOCK KEYED                                  
SHOULDER DIAMETER                       0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM    
SHOULDER LENGTH                         0.032 INCHES MINIMUM AND 0.042 INCHES MAXIMUM    
OVERALL LENGTH                          0.917 INCHES MINIMUM AND 0.957 INCHES MAXIMUM    
DISTANCE FROM SHOULDER                  0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM    
PORTION TO NUT END                                                                       
THREAD QUANTITY PER INCH                32 NUT THREAD 20 STUD THREAD                     
III HARDNESS RATING                     26.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C      
                                        MAXIMUM                                          
NOMINAL THREAD SIZE                     0.190 INCHES NUT THREAD 0.250 INCHES STUD THREAD 
MATERIAL                                STEEL COMP 416F                                  
MATERIAL DOCUMENT AND                   AMS 5610 ASSN STD SINGLE MATERIAL RESPONSE       
CLASSIFICATION                                                                            
SURFACE TREATMENT                       PASSIVATE OVERALL                                
DESIGN CONTROL REFERENCE                877B-3SD-16                                      
THE MANUFACTURERS DATA                  01556                                            
MANUFACTURERS CODE                                                                       
SURFACE TREATMENT DOCUMENT              QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
AND CLASSIFICATION                                                                       
STYLE DESIGNATOR                        LOCKED IN                                        
THREAD SERIES DESIGNATOR                UNF NUT THREAD UNC STUD THREAD