4210-01-377-4263 HEAD,SPRINKLER,FIRE PROTECTION Index 4730-01-377-4266 NUT ASSEMBLY,TUBE COUPLING

National Stock Number:
4730-01-377-4265

Federal Supply Class:
4730

National Item Identification Number:
013774265

Description:
NUT,TUBE COUPLING

Detail:
AN INTERNALLY THREADED NUT WHICH HAS EITHER AN INTERNAL SEAT OR SHOULDER AND/OR IS DESIGNED TO BE USED WITH A FERRULE, TO MATE WITH THE SEAT OF AN EXTERNALLY THREADED TUBE FITTING TO FORM A LEAKPROOF CONNECTION. EXCLUDES NUT (1), TUBE COUPLING, REDUCING; AND NUT (1), UNION.


Manufacturer Information:
S492248188277THE BOEING COMPANY
S4922481-2488277THE BOEING COMPANY


Techincal Specification:
FABRICATION METHODMACHINED
LARGEST OUTSIDE DIAMETER1.984 INCHES NOMINAL
LENGTH TO SHOULDER0.681 INCHES NOMINAL
LUBRICATIONDRY FILM LUBRICANT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 431 OVERALL
NOMINAL THREAD SIZE1.875 INCHES
NOMINAL TUBE OUTSIDE DIAMETER1.500 INCHES
NUT STYLETUBE COUPLING
NUT HEIGHT1.250 INCHES NOMINAL
SMALLEST INSIDE DIAMETER1.520 INCHES NOMINAL
SEAT ANGLE33.0 DEGREES NOMINAL
WIDTH ACROSS FLATS1.625 INCHES NOMINAL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH12
THREAD SERIESUN


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