Product Details | BOSS REDUCER

4730-00-838-7477 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).

Part Alternates: MS21916106C, MS21916-10-6C, MS21916J106, MS21916J10-6, 4730-00-838-7477, 00-838-7477, 4730008387477, 008387477

Pipe, Tubing, Hose, and Fittings | Hose, Pipe, Tube, Lubrication, and Railing Fittings

Supply Group (FSG) NSN Assign. NIIN
47 01 JAN 1962 00-838-7477

Drawings & Photos | NSN 4730-00-838-7477


Demand History | NSN 4730-00-838-7477

Part Number Request Date QTY Origin
4730-00-838-7477 2023-06-174 100 US
MS21916J106 2020-06-169 1 United States
4730-00-838-7477 2020-02-54 155 DIBBS
MS21916J106 2017-05-129 10 United States
4730-00-838-7477 2010-08-214 104 DIBBS
4730-00-838-7477 2009-11-316 58 DIBBS
4730-00-838-7477 2009-01-06 76 DIBBS

Cross Reference | NSN 4730-00-838-7477

Part Number Cage Code Manufacturer
AS18280 81343 SOCIETY OF AUTOMOTIVE ENGINEERS INC
MS21916-10-6C 96906 MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS
MS21916J10-6 81343 SOCIETY OF AUTOMOTIVE ENGINEERS INC
MS21916J10-6 96906 MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS

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Technical Data | NSN 4730-00-838-7477

Characteristic Specifications
MATERIAL STEEL COMP 304 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE MIL-F-14072,E300,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE
MEDIA FOR WHICH DESIGNED OIL SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
CONNECTION TYPE THREADED EXTERNAL BOSS ALL ENDS
CONNECTION STYLE B71A EXTERNAL SEAT FOR GASKET SEAL ALL ENDS
THREAD SERIES DESIGNATOR UNJF ALL ENDS
NOMINAL THREAD SIZE 0.875 INCHES 1ST END 0.562 INCHES 2ND END
THREAD CLASS 3A ALL ENDS
NOMINAL OVERALL LENGTH 1.625 INCHES
REDUCER TYPE CONCENTRIC
SPECIFICATION/STANDARD DATA 96906-MS21916 GOVERNMENT STANDARD
MANUFACTURERS CODE 96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MS21916J10-6

Restrictions/Controls & Freight Information | NSN 4730-00-838-7477

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information