Product Details | BOSS REDUCER

4730-00-684-6918 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: MS24397D12, AN89312D, AN893-12D, 4730-00-684-6918, 00-684-6918, 4730006846918, 006846918

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

Supply Group (FSG) NSN Assign. NIIN
47 01-JAN-63 00-684-6918

Demand History | NSN 4730-00-684-6918

Part Number Request Date QTY Origin
AN89312D 2018-04-93 6 United States
AN893-12D 2014-03-78 46 United States
AN893-12D 2014-03-71 23 United States
AN89312D 2012-04-116 5 Greece
AN893-12D 2011-06-159 30
AN89312D 2009-01-01 2 US

Cross Reference | NSN 4730-00-684-6918

Part Number Cage Code Manufacturer
AN893-12D 56529 HYDRAULICS INTERNATIONAL, INC.
AN893-12D 88044 AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
AS4875 81343 SOCIETY OF AUTOMOTIVE ENGINEERS INC
AS5172 81343 SOCIETY OF AUTOMOTIVE ENGINEERS INC
AS5172D0608L 81343 SOCIETY OF AUTOMOTIVE ENGINEERS INC

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Technical Data | NSN 4730-00-684-6918

Characteristic Specifications
MATERIAL ALUMINUM ALLOY OVERALL
SURFACE TREATMENT ANODIZE INSIDE ANODIZE OUTSIDE
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 TYPE THREADED INTERNAL BOSS 1ST END THREADED EXTERNAL BOSS 2ND END
CONNECTION STYLE B9 GASKET SEAL 1ST END B71 EXTERNAL SEAT FOR GASKET SEAL 2ND END
THREAD SERIES DESIGNATOR UNF 1ST END UNF 2ND END
NOMINAL THREAD SIZE 0.562 INCHES 1ST END 0.750 INCHES 2ND END
THREAD CLASS 3B 1ST END 3A 2ND END
NOMINAL OVERALL LENGTH 1.172 INCHES
REDUCER TYPE CONCENTRIC
SPECIAL FEATURES THREE 0.065 IN.MIN,0.075 IN.MAX DIA HOLES DRILLED THROUGH HEX CORNERS,0.312 IN. FROM FIRST END
MANUFACTURERS CODE 96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MS24397D12

Restrictions/Controls & Freight Information | NSN 4730-00-684-6918

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