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National Stock Number:
4730-00-640-5042
Federal Supply Class:
4730
National Item Identification Number:
006405042
Description:
REDUCER,BOSS
Detail:
A straight fitting having a boss connection of a different size at each end. Both connections have external 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. Excludes BUSHING (as modified).
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Manufacturer Information:
| AS21916 | 0U583 | SAE INTERNATIONAL | | AS21916 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | MS21916D12-8 | 0U583 | SAE INTERNATIONAL | | ER919D12-8 | 79470 | DANA CORP WEATHERHEAD DIV | | MS21916D12-8 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | MS21916D12-8 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| CONNECTION STYLE | EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS | | CONNECTION TYPE | THREADED EXTERNAL BOSS ALL ENDS | | CRITICALITY CODE JUSTIFICATION | FEAT | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY 2024 OVERALL | | NOMINAL OVERALL LENGTH | 1.625 INCHES | | NOMINAL THREAD SIZE | 0.750 INCHES SECOND END | | NOMINAL THREAD SIZE | 1.062 INCHES FIRST END | | REDUCER TYPE | CONCENTRIC | | SPECIAL FEATURES | WEAPON SYSTEM ESSENTIAL | | SPECIFICATION/STANDARD DATA | 96906-MS21916 GOVERNMENT STANDARD | | SURFACE TREATMENT | ANODIZE OVERALL | | THREAD CLASS | 3A ALL ENDS | | THREAD QUANTITY PER INCH | 12 FIRST END | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT (UNJ) FIRST END | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) SECOND END |
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