Product Details | FLANGE TO BOSS STRAIGHT ADAPTER

4730-01-594-6959 An adapter having a flange connection on one end designed to connect with another flange connection or a compression type mounting pad. The other end has external or internal machine threads (straight threads other than pipe or hose series) and is designed to facilitate a gasket, preformed packing, washer, or the like to form a seal at the boss. It is designed to join a flange or flange fitting to boss or boss fitting in a straight line on items such as tanks, housings, valve fittings, and the like.

Part Alternates: 64040402, 6404-04-02, 4730-01-594-6959, 01-594-6959, 4730015946959, 015946959

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

Supply Group (FSG) NSN Assign. NIIN
47 25 APR 2011 01-594-6959

Demand History | NSN 4730-01-594-6959

Part Number Request Date QTY Origin
6404-04-02 2025-11-310 125 DIBBS
6404-04-02 2025-02-42 62 DIBBS

Cross Reference | NSN 4730-01-594-6959

Part Number Cage Code Manufacturer
6404-04-02 5E240 BRENNAN INDUSTRIES

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Technical Data | NSN 4730-01-594-6959

Characteristic Specifications
MATERIAL STEEL OVERALL
SURFACE TREATMENT ZINC OVERALL
STYLE DESIGNATOR RIGID, THREADED INTERNAL AND EXTERNAL
CONNECTION TYPE THREADED INTERNAL BOSS 1ST END
THREAD SERIES DESIGNATOR UNC 1ST END
NOMINAL THREAD SIZE 0.250 INCHES 1ST END
THREAD QUANTITY PER INCH 20 1ST END
SPECIAL FEATURES HAS SURFACE FINISH OF YELLOW DICHROMATE
PART NAME ASSIGNED BY CONTROLLING AGENCY FEMALE BOSS X MALE PIPE ADAPTER

Restrictions/Controls & Freight Information | NSN 4730-01-594-6959

Category Code Description
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.
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
No Freight Information

Management | NSN 4730-01-594-6959

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each