4730-01-217-0320 PACKING NUT Index 4730-01-217-0322 TAILPIECE,UNION

National Stock Number:
4730-01-217-0321

Federal Supply Class:
4730

National Item Identification Number:
012170321

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.


Manufacturer Information:
2640-807X296169ELECTRIC BOAT CORPORATION
2640-807X2 PIECE 396169ELECTRIC BOAT CORPORATION


Techincal Specification:
CASEHARDENING INDICATORNOT CASEHARDENED
HOLE OR SLOT QUANTITY2
OVERALL LENGTH0.750 INCHES NOMINAL
MAJOR UNTHREADED OUTSIDE DIAMETER1.188 INCHES NOMINAL
MATERIALCOPPER ALLOY
SCREW THREAD LOCATIONEXTERNAL
SCREW THREAD SERIES DESIGNATORUN
SLOT WIDTH0.250 INCHES NOMINAL
SMALLEST INSIDE DIAMETER0.814 INCHES MAXIMUM
STYLE DESIGNATORROUND SLOTTED, EXTERNAL THREAD, BOSS
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.402 INCHES NOMINAL
THREAD SIZE2-16


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