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National Stock Number:
4730-01-131-7571
Federal Supply Class:
4730
National Item Identification Number:
011317571
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:
| 74B580177 | 76301 | THE BOEING COMPANY | | 74B580177-101 | 76301 | THE BOEING COMPANY | | LS580177 | 03038 | LONG-LOK, LLC | | LS580177-101 | 03038 | LONG-LOK, LLC | | 74B580177-101 | 76823 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| CASEHARDENING INDICATOR | NOT CASEHARDENED | | LENGTH TO SHOULDER | 0.391 INCHES NOMINAL | | MAJOR UNTHREADED OUTSIDE DIAMETER | 3.781 INCHES NOMINAL | | OVERALL LENGTH | 0.500 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY 2024 | | PROTRUSION QUANTITY | 12 | | SCREW THREAD LOCATION | INTERNAL | | SCREW THREAD SERIES DESIGNATOR | UNJ | | SMALLEST INSIDE DIAMETER | 3.309 INCHES NOMINAL | | SPECIAL FEATURES | W/FLANGE,4.031 IN.OD,AT BOTTOM OF NUT;ANODIZED RED | | STYLE DESIGNATOR | ROUND, INTERNAL THREAD, SHOULDERED | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2B | | THREAD LENGTH | 0.484 INCHES NOMINAL | | THREAD SIZE | 3-1/4-16 |
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