PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A5334Reducer,tube

Mueller Brass Co. · NSN 4730-00-071-3209 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-071-3209 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-071-3209. Primary manufacturer part number: A5334.
Features
  • Reducer,tube — FSC 4730
  • Nominal Overall Length: 1.875 INCHES IN
  • Media for Which Designed: REFRIGERATION COMPOUND SINGLE RESPONSE
  • Nominal Outside Diameter Tube Accommodated: 0.625 INCHES FIRST END IN
  • Nominal Thread Size: 0.375 INCHES SECOND END IN
  • Seat Angle: 45.0 DEGREES ALL ENDS
  • Thread Series Designator: UNF ALL ENDS
  • Operating Pressure: 260.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Reducer,tube, cataloged under National Stock Number 4730-00-071-3209, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-071-3209
Primary Part NumberA5334
Item NameReducer,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMueller Brass Co.
StatusACTIVE
Nominal Overall Length1.875 INCHES IN
Media for Which DesignedREFRIGERATION COMPOUND SINGLE RESPONSE
Nominal Outside Diameter Tube Accommodated0.625 INCHES FIRST END IN
Nominal Thread Size0.375 INCHES SECOND END IN
Seat Angle45.0 DEGREES ALL ENDS
Thread Series DesignatorUNF ALL ENDS
Operating Pressure260.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Outside Diameter Tube Accommodated0.375 INCHES SECOND END IN
Thread Class2A ALL ENDS A
Connection StyleFLARED (TUBE) ALL ENDS
Reducer TypeCONCENTRIC
MaterialCOPPER ALLOY OVERALL
Nominal Thread Size0.625 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6210-00-548-0196A-6745-IR-Y-24 INTERCHANGEABLE
Light,panel
Grimes Aerospace Company
Cross-Reference Index
Part NumberManufacturer
A5334 PRIMARY Mueller Brass Co. (USA)
Related Parts
6210-00-548-0196INTERCHANGEABLE
LIGHT,PANEL
A-6745-IR-Y-24

Frequently Asked Questions

What is NSN 4730-00-071-3209?

NSN 4730-00-071-3209 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 4730-00-071-3209?

NSN 4730-00-071-3209 has 1 cross-referenced part number: A5334 (Mueller Brass Co.).

What NSN replaces 4730-00-071-3209?

There is 1 known substitute for 4730-00-071-3209: 6210-00-548-0196. Verify interchangeability with system specifications before substitution.

What are the specifications of A5334?

Key specifications for A5334: Nominal Overall Length: 1.875 INCHES IN; Media for Which Designed: REFRIGERATION COMPOUND SINGLE RESPONSE; Nominal Outside Diameter Tube Accommodated: 0.625 INCHES FIRST END IN; Nominal Thread Size: 0.375 INCHES SECOND END IN. 13 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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