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		                        | National Stock Number:
 4730-00-727-8912
 
 Federal Supply Class:
 4730
 
 National Item Identification Number:
 007278912
 
 Description:
 LOCKNUT,TUBE FITTING
 
 Detail:
 AN ITEM WITH INTERNAL MACHINE THREADS DESIGNED TO FIT THE EXTERNAL MACHINE THREADS OF A TUBE FITTING. IT HAS FLAT FACES, ONE OF WHICH HAS A COUNTERBORED RECESS TO ACCOMMODATE PACKING, PACKING OR SEALING RING(S), GASKET(S), AND THE LIKE. THE ITEM, WHEN INSTALLED, PROVIDES A METHOD OF LOCKING AND SEALING THE CONNECTION. SEE ALSO LOCKNUT, PIPE; NUT (1), TUBE COUPLING AND NUT (1), PLAIN, HEXAGON.
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 Manufacturer Information:
 
 | 5WLN-SS | 30780 | PARKER-HANNIFIN CORPORATION |  | 5WLN-SS | 98441 | PARKER HANNIFIN CORP |  | 6 080118S | 0U583 | SAE INTERNATIONAL |  | J514 | 0U583 | SAE INTERNATIONAL |  | J514 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |  | 6 080118S | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |  | MIL-DTL-18866 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |  | MIL-F-18866 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |  | MS51860-55SS | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | 
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 Techincal Specification:
 
 | THREAD SERIES | UNF |  | NOMINAL THREAD SIZE | 0.562 INCHES |  | THREAD QUANTITY PER INCH | 18 |  | THREAD CLASS | 2B |  | THREAD DIRECTION | RIGHT-HAND |  | MATERIAL | STEEL CORROSION RESISTING OVERALL |  | SURFACE TREATMENT | PASSIVATE OVERALL |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |  | NUT STYLE | TUBE FITTING LOCKNUT |  | NUT HEIGHT | 0.265 INCHES NOMINAL |  | WIDTH ACROSS FLATS | 0.812 INCHES NOMINAL |  | PACKING RECESS DIAMETER | 0.812 INCHES NOMINAL |  | NOMINAL TUBE OUTSIDE DIAMETER | 0.375 INCHES |  | SPECIFICATION/STANDARD DATA | 96906-MS51860 GOVERNMENT STANDARD AND |  |  | 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |  | NONDEFINITIVE SPEC/STD DATA | 25B FIGURE |  | SPEC/STD CONTROLLING DATA |  |  | MANUFACTURERS CODE | 81349 |  | NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-DTL-18866 |  | MANUFACTURERS CODE | 96906 |  | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS51860-55SS | 
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