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National Stock Number:
4730-00-201-4705
Federal Supply Class:
4730
National Item Identification Number:
002014705
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:
| 21789-2 | 17610 | ROCKWELL COLLINS INC | | 90C0001 | 0BUJ0 | DASH ENGINEERING INC DBA D E I | | A51K9035-17 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | MSS21789-2 | 62727 | MID-STATE SALES, INC. |
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Techincal Specification:
| CONNECTION TYPE | THREADED EXTERNAL BOSS SECOND END | | CONNECTION TYPE | THREADED INTERNAL BOSS FIRST END | | CONNECTION STYLE | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END | | CONNECTION STYLE | GASKET SEAL (BOSS) FIRST END | | FLOW ANGLE | 90.0 DEGREES | | LEG LENGTH | 0.683 INCHES NOMINAL FIRST END | | LEG LENGTH | 0.893 INCHES NOMINAL SECOND END | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-769,TYPE 303SE,CONDITION A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303 OVERALL | | NOMINAL THREAD SIZE | 0.625 INCHES SECOND END | | NOMINAL THREAD SIZE | 0.250 INCHES FIRST END | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 11-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2A SECOND END | | THREAD CLASS | 2B FIRST END | | THREAD SERIES DESIGNATOR | UNF ALL ENDS |
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