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National Stock Number:
4730-00-315-9787
Federal Supply Class:
4730
National Item Identification Number:
003159787
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:
| AS18280 | 0U583 | SAE INTERNATIONAL | | AS18280 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | AS21916 | 0U583 | SAE INTERNATIONAL | | MS21916W4-3 | 0U583 | SAE INTERNATIONAL | | AS21916 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | AS21916W4-3 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | SAE-AS18280 | 0U583 | SAE INTERNATIONAL | | SAE AS21916 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | MS21916W4-3 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | MS21916W4-3 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 7075 OVERALL | | CONNECTION TYPE | THREADED EXTERNAL BOSS ALL ENDS | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE | | MIL-A-8625,TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE | | CONNECTION STYLE | EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS | | THREAD SERIES DESIGNATOR | UNJF ALL ENDS | | NOMINAL THREAD SIZE | 0.438 INCHES 1ST END | | 0.375 INCHES 2ND END | | THREAD CLASS | 3A ALL ENDS | | NOMINAL OVERALL LENGTH | 1.141 INCHES | | REDUCER TYPE | CONCENTRIC |
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