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National Stock Number:
4730-00-540-0672
Federal Supply Class:
4730
National Item Identification Number:
005400672
Description:
COUPLING,BOSS
Detail:
A STRAIGHT ONE-PIECE FITTING 12 INCHES (304 MM) LONG OR UNDER HAVING THE SAME SIZE FITTING ON EACH END (STRAIGHT MACHINE THREADS OTHER THAN PIPE OR HOSE SERIES). IT MAY HAVE INTERNAL THREADS ON BOTH ENDS OR INTERNAL THREADS ON ONE END AND EXTERNAL THREADS ON THE OTHER DESIGNED TO FACILITATE A GASKET, PREFORMED PACKING, WASHER, OR THE LIKE, TO FORM A SEAL AT THE BOSS. IT IS DESIGNED TO JOIN TWO BOSSES OR BOSS FITTINGS. EXCLUDES ITEMS HAVING EXTERNAL THREADED CONNECTIONS ON BOTH ENDS.
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Manufacturer Information:
| 78FM1995 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 89FM1995-5 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| CONNECTION TYPE | THREADED EXTERNAL BOSS SECOND END | | CONNECTION TYPE | THREADED INTERNAL BOSS FIRST END | | CONNECTION STYLE | FLARED W/ GASKET SEAL (BOSS) SECOND END | | CONNECTION STYLE | GASKET SEAL (BOSS) FIRST END | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-354,CL 24 STT4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY OVERALL | | NOMINAL OVERALL LENGTH | 1.187 INCHES | | NOMINAL THREAD SIZE | 0.438 INCHES FIRST END | | NOMINAL THREAD SIZE | 0.438 INCHES SECOND END | | REDUCED PASSAGE NOMINAL INSIDE DIAMETER | 0.021 INCHES SECOND END | | STYLE DESIGNATOR | RIGID W/OFFSET WRENCHING FACILITY | | SURFACE TREATMENT | ANODIZE OVERALL | | THREAD CLASS | 3A SECOND END | | THREAD CLASS | 3B FIRST END | | THREAD SERIES DESIGNATOR | UNF FIRST END | | THREAD SERIES DESIGNATOR | UNF SECOND END |
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