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National Stock Number:
4730-00-277-1921
Federal Supply Class:
4730
National Item Identification Number:
002771921
Description:
ELBOW,BOSS
Detail:
A FITTING THAT FORMS AN ANGLE OF LESS THAN 180 DEGREES (3.141 RADIANS) FROM THE STRAIGHT FLOW. THE BOSS CONNECTIONS HAVE EXTERNAL AND/OR INTERNAL MACHINE THREADS (STRAIGHT THREADS OTHER THAN PIPE OR HOSE SERIES), AND ARE DESIGNED TO FACILITATE A GASKET, PREFORMED PACKING, WASHER, OR THE LIKE, TO FORM A SEAL AT THE BOSS. IT MAY HAVE SIDE OR HEEL INLET(S). IT IS DESIGNED TO JOIN TWO BOSSES OR BOSS FITTINGS ON ITEMS SUCH AS TANKS, HOUSINGS, VALVE FITTINGS, AND THE LIKE. EXCLUDES ELBOW, TUBE.
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Manufacturer Information:
| 4730PL0965831 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | 8169041 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | AN939-4 | 00624 | EATON AEROQUIP LLC | | AN939-4 | 06581 | ALLAN AIRCRAFT SUPPLY CO., LLC | | AN939-4 | 13899 | HYDRO-FITTING MANUFACTURING CORPORATION | | AN934-4 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE | | AN939-4 | 14397 | FABER ENTERPRISES, INC. | | AN939-4 | 14798 | DESIGNED METAL CONNECTIONS INC | | AN939-4 | 22995 | CROWN FITTING CO INC | | AN939-4 | 30974 | AEROFIT, LLC | | AN939-4 | 71563 | COLLINS ENGINEERING CORP | | AS4875 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | AN939-4 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE | | AN939-4 | R1120 | SATAIR A/S | | AS5190-04 | 0U583 | SAE INTERNATIONAL | | AS5190-04 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | SAE AS4875 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | SAE AS5190 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | AS5190 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
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Techincal Specification:
| CONNECTION STYLE | GASKET SEAL (BOSS) ALL ENDS | | CONNECTION TYPE | THREADED INTERNAL BOSS ALL ENDS | | FLOW ANGLE | 90.0 DEGREES | | LEG LENGTH | 0.750 INCHES NOMINAL FIRST END | | OPERATING PRESSURE | 3000.00 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | PART NAME ASSIGNED BY CONTROLLING AGENCY | FITTING,ELBOW 90(DEGREES),INTERNAL STRAIGHT THREAD PORT | | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4130 OVERALL | | NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED | 0.250 INCHES FIRST END | | NOMINAL THREAD SIZE | 0.4375 INCHES FIRST END | | NOMINAL WIDTH | 0.744 INCHES FIRST END | | SPECIAL TEST FEATURES | MATERIAL: 4130 CARBON STEEL FORGING OR BAR PER AMS-S-6758 OR AMS 6370,OR TYPE 4140 PER AMS 6382, FINISH:CADMIUM PLATE PER QQ-P-416,TYPE II, CLASS 2, DYE BLACK AND COAT WITH A LIGHT FILM OF OIL PER PROCUREMENT SPECIFICATION | | SPECIFICATION/STANDARD DATA | 88044-AN939 GOVERNMENT STANDARD | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3B ALL ENDS | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS | | THREAD QUANTITY PER INCH | 20 ALL ENDS |
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