1730-00-838-2769 GEARBOX ASSY Index 5330-00-838-2771 O-RING

National Stock Number:
4730-00-838-2770

Federal Supply Class:
4730

National Item Identification Number:
008382770

Description:
TEE,TUBE TO BOSS

Detail:
A FITTING HAVING THREE CONNECTIONS WITH THE BRANCH CONNECTION FIXED AT 90 DEGREES (1.5705 RADIANS) TO THE RUN. THE TUBE CONNECTION(S) HAS MACHINE THREADS (STRAIGHT THREADS OTHER THAN PIPE OR HOSE SERIES) DESIGNED TO ACCOMMODATE A TUBE, OR IS UNTHREADED AND DESIGNED TO ACCOMMODATE A TUBE. THE BOSS CONNECTION(S) HAS EXTERNAL OR INTERNAL MACHINE THREADS (STRAIGHT THREADS OTHER THAN PIPE OR HOSE SERIES), AND IS DESIGNED TO FACILITATE A GASKET, PREFORMED PACKING, WASHER, OR THE LIKE, TO FORM A SEAL AT THE BOSS. IT MAY HAVE SIDE INLET(S). IT IS USED AS A JUNCTION AT THE INTERSECTION OF A TUBE OR FITTING AND A BOSS OR BOSS FITTING ON ITEMS SUCH AS A TANK, HOUSING, VALVE FITTING, OR THE LIKE. SEE ALSO TEE, TUBE; AND TEE, PIPE TO TUBE. EXCLUDES CONNECTOR, MULTIPLE, FLUID PRESSURE LINE.


Manufacturer Information:
MS21910-5C0U583SAE INTERNATIONAL
MS21910-5C96906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SAE-AS182800U583SAE INTERNATIONAL


Techincal Specification:
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION STYLEFLARELESS (TUBE) FIRST END
CONNECTION STYLEGASKET SEAL (BOSS) THIRD END
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPETHREADED INTERNAL BOSS THIRD END
LEG LENGTH0.750 INCHES NOMINAL THIRD END
LEG LENGTH1.094 INCHES NOMINAL SECOND END
LEG LENGTH1.672 INCHES NOMINAL FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CL 304 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 304 OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.313 INCHES FIRST END
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS
NOMINAL THREAD SIZE0.500 INCHES FIRST END BULKHEAD
SEAT ANGLE12.0 DEGREES FIRST END
SURFACE TREATMENTPASSIVATE INSIDE
SURFACE TREATMENTPASSIVATE OUTSIDE
THREAD CLASS3A FIRST END
THREAD CLASS3A FIRST END BULKHEAD
THREAD CLASS3A SECOND END
THREAD CLASS3B THIRD END
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT (UNJ) ALL ENDS
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT (UNJ) FIRST END BULKHEAD
THREAD QUANTITY PER INCH12 ALL ENDS


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