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National Stock Number:
4730-01-625-7643
Federal Supply Class:
4730
National Item Identification Number:
016257643
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:
| AS4841 | 0U583 | SAE INTERNATIONAL | | AS5179 | 0U583 | SAE INTERNATIONAL | | AS5179D20 | 0U583 | SAE INTERNATIONAL | | SAE-AS4841 | 0U583 | SAE INTERNATIONAL | | AS5179D20 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
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Techincal Specification:
| PACKING RECESS DEPTH | 0.054 INCHES NOMINAL | | PACKING RECESS DIAMETER | 1.854 INCHES NOMINAL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NUT, FITTING, PORT | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/4,ALLOY 2014,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY 2014 OVERALL | | NOMINAL THREAD SIZE | 1.625 INCHES | | NOMINAL TUBE OUTSIDE DIAMETER | 1.250 INCHES | | NUT HEIGHT | 0.438 INCHES NOMINAL | | NUT STYLE | TUBE FITTING LOCKNUT | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL | | THREAD CLASS | 3B | | THREAD DIRECTION | RIGHT-HAND | | THREAD SERIES | UNIFIED NATIONAL JOINT (UNJ) | | THREAD QUANTITY PER INCH | 12 | | WIDTH ACROSS FLATS | 1.938 INCHES NOMINAL |
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