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National Stock Number:
4730-00-670-7321
Federal Supply Class:
4730
National Item Identification Number:
006707321
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:
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF 1ST END | | UNF 2ND END | | NOMINAL THREAD SIZE | 0.500 INCHES 1ST END | | 0.500 INCHES 2ND END | | THREAD CLASS | 2B 1ST END | | 2A 2ND END | | NOMINAL OVERALL LENGTH | 2.750 INCHES | | SPECIAL FEATURES | 0.500 IN. LG CUT-AWAYBEGINNING 0.813 IN. FROM 2ND END | | MATERIAL | STEEL OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | STYLE DESIGNATOR | RIGID, THREADED INTERNAL AND EXTERNAL | | CONNECTION TYPE | THREADED INTERNAL BOSS 1ST END | | THREADED EXTERNAL BOSS 2ND END | | CONNECTION STYLE | GASKET SEAL (BOSS) 1ST END | | EXTERNAL SEAT FOR GASKET SEAL (BOSS) 2ND END |
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