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National Stock Number: 4730-00-045-3940
Federal Supply Class: 4730
National Item Identification Number: 000453940
Description: PACKING NUT
Detail: AN ITEM HAVING INTERNAL AND/OR EXTERNAL MACHINE THREAD(S) (THREADS OTHER THAN PIPE OR HOSE SERIES), SPECIFICALLY DESIGNED TO RETAIN, BY MEANS OR GROOVE(S), SHOULDER(S), AND THE LIKE, PACKING AND/OR A PACKING GLAND WITHIN A STUFFING BOX. SEE ALSO BUSHING, MACHINE THREAD; INVERTED NUT, TUBE COUPLING; AND NUT, TUBE COUPLING. EXCLUDES PACKING NUT, STUFFING TUBE; AND USE WITH ELECTRICAL CABLE, AND LOCKNUT, PIPE.
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Manufacturer Information:
7984994 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
CASEHARDENING INDICATOR | NOT CASEHARDENED | LARGEST INSIDE DIAMETER | 0.812 INCHES NOMINAL | LENGTH TO SHOULDER | 1.281 INCHES NOMINAL | MAJOR UNTHREADED OUTSIDE DIAMETER | 0.500 INCHES NOMINAL | OVERALL LENGTH | 1.406 INCHES NOMINAL | MATERIAL | STEEL | SCREW THREAD LOCATION | EXTERNAL | SCREW THREAD SERIES DESIGNATOR | UNF | SMALLEST INSIDE DIAMETER | 0.625 INCHES NOMINAL | WIDTH ACROSS FLATS | 1.000 INCHES NOMINAL | STYLE DESIGNATOR | HEXAGON, EXTERNAL THREAD, SHOULDERED | THREAD CLASS | 2A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.343 INCHES NOMINAL | THREAD SIZE | 5/8-18 | UNTHREADED PORTION LENGTH | 0.125 INCHES NOMINAL |
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