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National Stock Number:
4730-00-278-8398
Federal Supply Class:
4730
National Item Identification Number:
002788398
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.
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Manufacturer Information:
| AS18280 | 0U583 | SAE INTERNATIONAL | | AS18280 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | AS21911 | 0U583 | SAE INTERNATIONAL | | AS21911 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | AS21911-4 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | MS21911-4 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | MS21911V4P | 0U583 | SAE INTERNATIONAL | | SAE-AS18280 | 0U583 | SAE INTERNATIONAL | | MS21911V4P | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
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Techincal Specification:
| CONNECTION TYPE | THREADED EXTERNAL BOSS THIRD END | | CONNECTION TYPE | THREADED EXTERNAL TUBE FIRST END | | CONNECTION TYPE | THREADED INTERNAL BOSS SECOND END | | CONNECTION STYLE | EXTERNAL SEAT FOR GASKET SEAL (BOSS) THIRD END | | CONNECTION STYLE | FLARELESS (TUBE) FIRST END | | CONNECTION STYLE | GASKET SEAL (BOSS) SECOND END | | CRITICALITY CODE JUSTIFICATION | FEAT | | LEG LENGTH | 1.094 INCHES NOMINAL THIRD END | | LEG LENGTH | 1.672 INCHES NOMINAL FIRST END | | LEG LENGTH | 0.750 INCHES NOMINAL SECOND END | | MATERIAL | STEEL OVERALL | | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES FIRST END | | NOMINAL THREAD SIZE | 0.438 INCHES ALL ENDS | | NOMINAL THREAD SIZE | 0.438 INCHES FIRST END BULKHEAD | | SEAT ANGLE | 12.0 DEGREES FIRST END | | SPECIAL FEATURES | USED ON GRUMMAN AIRCRAFT,MODEL A10;WEAPON SYSTEM ESSENTIAL | | SPECIFICATION/STANDARD DATA | 96906-MS21911 GOVERNMENT STANDARD | | THREAD CLASS | 3A FIRST END | | THREAD CLASS | 3A FIRST END BULKHEAD | | THREAD CLASS | 3A THIRD END | | THREAD CLASS | 3B SECOND END | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END BULKHEAD |
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