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National Stock Number:
4730-00-277-6429
Federal Supply Class:
4730
National Item Identification Number:
002776429
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:
| 4730PL1939516 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | AN928D4 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE | | AS5191W04 | 0U583 | SAE INTERNATIONAL | | AS5191W04 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | AN941D4 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE | | AS5191W04 | A0126 | LEONARDO SPA HELICOPTERS DIVISION -PRODUCTION SITE | | SAE-AS4875 | 0U583 | SAE INTERNATIONAL |
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Techincal Specification:
| CONNECTION TYPE | THREADED INTERNAL BOSS ALL ENDS | | MATERIAL | ALUMINUM ALLOY 2014 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-367,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ANODIZE INSIDE | | ANODIZE OUTSIDE | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE | | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE | | CONNECTION STYLE | GASKET SEAL (BOSS) ALL ENDS | | THREAD SERIES DESIGNATOR | UNF ALL ENDS | | NOMINAL THREAD SIZE | 0.438 INCHES 1ST END | | THREAD CLASS | 3B ALL ENDS | | LEG LENGTH | 0.688 INCHES NOMINAL 1ST END | | FLOW ANGLE | 45.0 DEGREES |
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