PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

UR3-84Reducer,tube

Mueller Brass Co. · NSN 4730-01-160-5765 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-160-5765 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-160-5765. Primary manufacturer part number: UR3-84.
Features
  • Reducer,tube — FSC 4730
  • Connection Style: FLARED (TUBE) FIRST END
  • Connection Type: THREADED INTERNAL TUBE FIRST END
  • Nominal Overall Length: 1.375 INCHES IN
  • Nominal Outside Diameter Tube Accommodated: 0.500 INCHES FIRST END IN
  • Nondefinitive Spec/std Data: 22 FIGURE
  • Nominal Thread Size: 0.750 INCHES FIRST END IN
  • Criticality Code Justification: ZZZY
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy 360 Overall construction
General Description

The Reducer,tube, cataloged under National Stock Number 4730-01-160-5765, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Mueller Brass Co.. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-160-5765
Primary Part NumberUR3-84
Item NameReducer,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMueller Brass Co.
StatusACTIVE
Connection StyleFLARED (TUBE) FIRST END
Connection TypeTHREADED INTERNAL TUBE FIRST END
Nominal Overall Length1.375 INCHES IN
Nominal Outside Diameter Tube Accommodated0.500 INCHES FIRST END IN
Nondefinitive Spec/std Data22 FIGURE
Nominal Thread Size0.750 INCHES FIRST END IN
Criticality Code JustificationZZZY
MaterialCOPPER ALLOY 360 OVERALL
Connection TypeTHREADED EXTERNAL TUBE SECOND END
Thread Series DesignatorUNF ALL ENDS
Specification/standard Data81343-J513 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Nominal Outside Diameter Tube Accommodated0.250 INCHES SECOND END IN
Connection StyleFLARED (TUBE) SECOND END
Thread Class3B FIRST END
Thread Class3A SECOND END A
Nominal Thread Size0.438 INCHES SECOND END IN
Reducer TypeCONCENTRIC
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Seat Angle45.0 DEGREES ALL ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5940-00-086-8318MS21004-7 INTERCHANGEABLE
Terminal,lug
Abb Installation Products Inc
5940-00-197-8683A480 INTERCHANGEABLE
Terminal,lug
Abb Installation Products Inc
4730-00-595-27623691-54REVAPC13 INTERCHANGEABLE
Reducer,tube
Electric Boat Corporation Div General Dynamics Electric Boat
5955-01-074-8821RASCO-1-4.194304MHZ INTERCHANGEABLE
Oscillator,crystal Controlled
Department of State Health Services
4730-01-202-7008 INTERCHANGEABLE
Reducer,tube
6685-01-714-2073A-480 INTERCHANGEABLE
Static Tube
Dwyer Instruments Inc
Cross-Reference Index
Part NumberManufacturer
UR3-84 Mueller Brass Co. (USA)
A-480 Mueller Brass Co. (USA)
845-2445071ITEM39 Naval Ship Systems Command (USA)
503-4556027ITEM39 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
2670-57PC39 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
J513 Society of Automotive Engineers Inc (USA)
J513 Sae International Dba Sae International (USA)
Related Parts
5940-00-086-8318INTERCHANGEABLE
TERMINAL,LUG
MS21004-7
5940-00-197-8683INTERCHANGEABLE
TERMINAL,LUG
A480
4730-00-595-2762INTERCHANGEABLE
REDUCER,TUBE
3691-54REVAPC13
5955-01-074-8821INTERCHANGEABLE
OSCILLATOR,CRYSTAL CONTROLLED
RASCO-1-4.194304MHZ
4730-01-202-7008INTERCHANGEABLE
REDUCER,TUBE
6685-01-714-2073INTERCHANGEABLE
STATIC TUBE
A-480

Frequently Asked Questions

What is NSN 4730-01-160-5765?

NSN 4730-01-160-5765 is a Reducer,tube, manufactured by Mueller Brass Co., classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-160-5765?

NSN 4730-01-160-5765 has 7 cross-referenced part numbers: UR3-84 (Mueller Brass Co.), A-480 (Mueller Brass Co.), 845-2445071ITEM39 (Naval Ship Systems Command), 503-4556027ITEM39 (Huntington Ingalls Inc Div Newport News Shipbuilding), 2670-57PC39 (Huntington Ingalls Inc Div Newport News Shipbuilding) and 2 more.

What NSN replaces 4730-01-160-5765?

There are 6 known substitutes for 4730-01-160-5765: 5940-00-086-8318, 5940-00-197-8683, 4730-00-595-2762 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of UR3-84?

Key specifications for UR3-84: Connection Style: FLARED (TUBE) FIRST END; Connection Type: THREADED INTERNAL TUBE FIRST END; Nominal Overall Length: 1.375 INCHES IN; Nominal Outside Diameter Tube Accommodated: 0.500 INCHES FIRST END IN. 19 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com