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National Stock Number:
4730-00-595-3920
Federal Supply Class:
4730
National Item Identification Number:
005953920
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:
| S1565-61388 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| CONNECTION TYPE | THREADED EXTERNAL BOSS 2ND END | | CONNECTION STYLE | DOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) 2ND END | | CONNECTION STYLE | GASKET SEAL (BOSS) 1ST END | | CONNECTION TYPE | THREADED INTERNAL BOSS 1ST END | | FLOW ANGLE | 90.0 DEGREES | | LEG LENGTH | 1.312 INCHES NOMINAL 2ND END | | LEG LENGTH | 0.844 INCHES NOMINAL 1ST END | | MATERIAL | ALUMINUM ALLOY OVERALL | | NOMINAL THREAD SIZE | 0.438 INCHES 1ST END | | NOMINAL THREAD SIZE | 0.562 INCHES 2ND END | | SURFACE TREATMENT | ANODIZE INSIDE | | SURFACE TREATMENT | ANODIZE OUTSIDE | | THREAD CLASS | 3A 2ND END | | THREAD CLASS | 3B 1ST END | | THREAD SERIES DESIGNATOR | UNF 1ST END | | THREAD SERIES DESIGNATOR | UNF 2ND END |
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