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National Stock Number:
4730-01-389-0400
Federal Supply Class:
4730
National Item Identification Number:
013890400
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:
| AN6289K2 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE | | MIL-F-5509 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| FABRICATION METHOD | MACHINED | | HOLE THREAD QUANTITY PER INCH | 24 | | PACKING RECESS DEPTH | 0.037 INCHES NOMINAL | | PACKING RECESS DIAMETER | 0.483 INCHES NOMINAL | | MATERIAL | STEEL COMP 316 OVERALL | | NOMINAL THREAD SIZE | 0.313 INCHES | | NOMINAL TUBE OUTSIDE DIAMETER | 0.125 INCHES | | NUT HEIGHT | 0.250 INCHES NOMINAL | | NUT STYLE | TUBE FITTING LOCKNUT | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-5509 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | THREAD CLASS | 3B | | THREAD DIRECTION | RIGHT-HAND | | THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) | | THREAD QUANTITY PER INCH | 24 | | WIDTH ACROSS FLATS | 0.563 INCHES NOMINAL |
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