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National Stock Number:
4730-00-274-3378
Federal Supply Class:
4730
National Item Identification Number:
002743378
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:
| DD445S4501-171ALT5PC70 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | HC112E | 16712 | SIEMENS ENERGY, INC. |
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Techincal Specification:
| CASEHARDENING INDICATOR | NOT CASEHARDENED | | LENGTH TO SHOULDER | 0.500 INCHES NOMINAL | | MATERIAL | STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 310 OR STEEL COMP 316 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 410 OR STEEL COMP 416 OR STEEL COMP 420 OR STEEL COMP 430 | | OVERALL LENGTH | 0.688 INCHES NOMINAL | | SCREW THREAD LOCATION | INTERNAL | | SCREW THREAD SERIES DESIGNATOR | UN | | SMALLEST INSIDE DIAMETER | 0.500 INCHES NOMINAL | | SPECIAL FEATURES | 1 DRILLED AND TAPPED HOLE 3/16 IN.,- 32 THD LOCATED 1/4 IN. FROM THD END OF NUT ON HEX | | STYLE DESIGNATOR | HEXAGON, INTERNAL THREAD, SHOULDERED | | THREAD LENGTH | 0.375 INCHES NOMINAL | | THREAD CLASS | 3B | | THREAD DIRECTION | RIGHT-HAND | | THREAD SIZE | 1.250-16 | | WIDTH ACROSS FLATS | 1.625 INCHES NOMINAL |
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