| 
                            
                                |  |  
                                |   |  
		                        | National Stock Number:
 5310-01-496-7142
 
 Federal Supply Class:
 5310
 
 National Item Identification Number:
 014967142
 
 Description:
 NUT,SELF-LOCKING,CASTELLATED,DOU
 
 Detail:
 A NUT HAVING 12 DRIVE POINTS, 24 SIDES, FLAT ON THE BOTTOM AND HAVING A SLOTTED CYLINDRICAL OR DOME SHAPED UPPER PORTION. AN INTEGRAL FEATURE IS INCORPORATED FOR LOCKING ON THE THREADS OF A MATING MEMBER. THE SLOTS WHEN USED IN CONJUNCTION WITH A SOLID OR SPLIT (COTTER) PIN, ACT AS AN EXTRA "FAIL SAFE" FEATURE IN CRITICAL APPLICATIONS.
 |  
		                        | 
 Manufacturer Information:
 
 | 61170D-524 | 56878 | SPS TECHNOLOGIES, LLC | 
 |  
					            | 
 Techincal Specification:
 
 | THREAD SERIES | UNJF |  | NOMINAL THREAD SIZE | 0.312 INCHES |  | THREAD QUANTITY PER INCH | 24 |  | THREAD CLASS | 3B |  | THREAD DIRECTION | RIGHT-HAND |  | MATERIAL | IRON ALLOY 660 OVERALL |  | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |  | SURFACE TREATMENT | CADMIUM OVERALL |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TYPE II CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |  | NUT STYLE | CASTELLATED, DOUBLE HEXAGON |  | NUT HEIGHT | 0.385 INCHES NOMINAL |  | WIDTH ACROSS FLATS | 0.531 INCHES NOMINAL |  | LOCKING FEATURE | ANY ACCEPTABLE |  | TEMP RATING | 900.0 DEG FAHRENHEIT MAXIMUM |  | SPECIAL FEATURES | MATERIAL STATED A286 | 
 |  |