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National Stock Number:
4730-00-851-8466
Federal Supply Class:
4730
National Item Identification Number:
008518466
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 | | MS21916-4-3C | 00624 | EATON AEROQUIP LLC | | MS21916-4-3C | 01673 | SPS TECHNOLOGIES, LLC | | AS21916 | 0U583 | SAE INTERNATIONAL | | AS21916 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | MS21916J4-3 | 00624 | EATON AEROQUIP LLC | | MS21916J4-3 | 01673 | SPS TECHNOLOGIES, LLC | | MS21916J4-3 | 03647 | GLOBE AEROSPACE INC | | MS21916-4-3C | 03647 | GLOBE AEROSPACE INC | | MS21916J4-3 | 08199 | EATON AEROSPACE | | MS21916J4-3 | 0U583 | SAE INTERNATIONAL | | MS21916J4-3 | 14397 | FABER ENTERPRISES, INC. | | MS21916-4-3C | 14798 | DESIGNED METAL CONNECTIONS INC | | SAE-AS18280 | 0U583 | SAE INTERNATIONAL | | MS21916J4-3 | 14798 | DESIGNED METAL CONNECTIONS INC | | MS21916J4-3 | 30974 | AEROFIT, LLC | | MS21916J4-3 | 52930 | NELSON AERO SPACE, INC. | | MS21916J4-3 | 66774 | PRECISION AIRCRAFT MACHINING COMPANY, INC. | | MS21916J4-3 | 66776 | HOWMET GLOBAL FASTENING SYSTEMS INC | | MS21916J4-3 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | MS21916J4-3 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | MS21916K4-3 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| CONNECTION TYPE | THREADED EXTERNAL BOSS ALL ENDS | | DEPARTURE FROM CITED DOCUMENT | AS MODIFIED BY MATERIAL | | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | CHROMIUM OVERALL | | MAXIMUM OPERATING TEMP | 135.0 CELSIUS SINGLE RESPONSE | | NOMINAL OVERALL LENGTH | 1.141 INCHES | | NOMINAL THREAD SIZE | 0.438 INCHES FIRST END | | NOMINAL THREAD SIZE | 0.375 INCHES SECOND END | | OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | REDUCER TYPE | CONCENTRIC | | SPECIFICATION/STANDARD DATA | 81343-AS21916 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A ALL ENDS | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS |
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