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		                        | National Stock Number:
 4730-00-357-9957
 
 Federal Supply Class:
 4730
 
 National Item Identification Number:
 003579957
 
 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:
 
 | 0703 | 96152 | BORG-WARNER CORP MARVEL-SCHEBLER/TILLOTSON DIV | 
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 Techincal Specification:
 
 | CASEHARDENING INDICATOR | NOT CASEHARDENED |  | LENGTH TO SHOULDER | 0.187 INCHES NOMINAL |  | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-626, ALLOY 360 FED SPEC SINGLE MATERIAL RESPONSE |  | MATERIAL HARDNESS RATING | 78.0 ROCKWELL B NOMINAL |  | MATERIAL | COPPER ALLOY 360 |  | OVERALL LENGTH | 0.281 INCHES NOMINAL |  | SCREW THREAD LOCATION | INTERNAL |  | SCREW THREAD SERIES DESIGNATOR | UNEF |  | SMALLEST INSIDE DIAMETER | 0.195 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |  | STYLE DESIGNATOR | HEXAGON, INTERNAL THREAD, SHOULDERED |  | THREAD CLASS | 2B |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD LENGTH | 0.156 INCHES NOMINAL |  | THREAD SIZE | 0.312-32 |  | WIDTH ACROSS FLATS | 0.375 INCHES NOMINAL | 
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