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National Stock Number:
4730-00-684-3528
Federal Supply Class:
4730
National Item Identification Number:
006843528
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:
| AS1820 | 0U583 | SAE INTERNATIONAL | | AS1820 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | AS21916 | 0U583 | SAE INTERNATIONAL | | MS21916-10-4 | 0U583 | SAE INTERNATIONAL | | MS21916-10-4 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | AS21916 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | SAE-AS18280 | 0U583 | SAE INTERNATIONAL | | MS21916-10-4 | 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 | | MATERIAL | STEEL COMP 1137 OR STEEL COMP 1141 OVERALL | | NOMINAL OVERALL LENGTH | 1.438 INCHES | | NOMINAL THREAD SIZE | 0.438 INCHES SECOND END | | NOMINAL THREAD SIZE | 0.875 INCHES FIRST END | | REDUCER TYPE | CONCENTRIC | | SPECIFICATION/STANDARD DATA | 96906-MS21916 GOVERNMENT STANDARD | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 1,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3A ALL ENDS | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS | | THREAD QUANTITY PER INCH | 20 SECOND END |
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