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National Stock Number:
4730-01-297-0219
Federal Supply Class:
4730
National Item Identification Number:
012970219
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:
| 5497725 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 5497725-1 | 38597 | LOCKHEED MARTIN CORPORATION | | 5497725-2 | 38597 | LOCKHEED MARTIN CORPORATION | | 5497725-2 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 5497725-1 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| CONNECTION STYLE | PLAIN (TUBE) SECOND END | | CONNECTION STYLE | PLAIN (TUBE) FIRST END | | CONNECTION TYPE | THREADED INTERNAL TUBE FIRST END | | CONNECTION TYPE | THREADED INTERNAL TUBE SECOND END | | MATERIAL | STEEL COMP 4130 OVERALL | | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.190 INCHES SECOND END | | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 1.250 INCHES FIRST END | | NOMINAL OVERALL LENGTH | 2.083 INCHES | | NOMINAL THREAD SIZE | 0.750 INCHES SECOND END | | NOMINAL THREAD SIZE | 1.625 INCHES FIRST END | | THREAD CLASS | 3B FIRST END | | THREAD CLASS | 3B SECOND END | | THREAD SERIES DESIGNATOR | UNF FIRST END | | THREAD SERIES DESIGNATOR | UNF SECOND END |
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