PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W2131Elbow,pipe to Tube

Mueller Brass Co. · NSN 4730-00-359-7052 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-359-7052 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-359-7052. Primary manufacturer part number: W2131.
Features
  • Elbow,pipe to Tube — FSC 4730
  • Flow Angle: 90.0 DEGREES
  • Tubing Wall Nominal Thickness for Which Designed: 0.035 INCHES FIRST END IN
  • Connection Style: SOCKET (TUBE) FIRST END
  • Material: COPPER ALLOY OVERALL
  • Nominal Pipe Size Accommodated: 0.500 INCHES SECOND END IN
  • Thread Series Designator: NPT SECOND END
  • Nominal Outside Diameter Tube Accommodated: 0.625 INCHES FIRST END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Elbow,pipe to Tube, cataloged under National Stock Number 4730-00-359-7052, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-359-7052
Primary Part NumberW2131
Item NameElbow,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMueller Brass Co.
StatusCANCELLED
Flow Angle90.0 DEGREES
Tubing Wall Nominal Thickness for Which Designed0.035 INCHES FIRST END IN
Connection StyleSOCKET (TUBE) FIRST END
MaterialCOPPER ALLOY OVERALL
Nominal Pipe Size Accommodated0.500 INCHES SECOND END IN
Thread Series DesignatorNPT SECOND END
Nominal Outside Diameter Tube Accommodated0.625 INCHES FIRST END IN
Maximum Operating Temp121.0 FAHRENHEIT SINGLE RESPONSE DEGF
Connection TypeUNTHREADED INTERNAL TUBE FIRST END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Nominal Thread Size0.500 INCHES SECOND END IN
Leg Length1.250 INCHES NOMINAL SECOND END IN
Leg Length0.938 INCHES NOMINAL FIRST END IN
Connection StylePLAIN (PIPE) SECOND END
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4730-00-053-0624W-2388 INTERCHANGEABLE
Elbow,tube
Mueller Brass Co.
4730-00-265-7019 INTERCHANGEABLE
Cap,tube
4730-00-265-7020 INTERCHANGEABLE
Cap,tube
4730-00-289-1271 INTERCHANGEABLE
Elbow,tube
4730-00-702-8804 INTERCHANGEABLE
Adapter,straight,pipe to Tube
4730-00-722-1295 INTERCHANGEABLE
Coupling,tube
4730-00-722-3579 INTERCHANGEABLE
Adapter,straight,pipe to Tube
4730-00-808-7817W1339 INTERCHANGEABLE
Reducer,tube
Mueller Brass Co.
4730-00-813-3193 INTERCHANGEABLE
Elbow,tube
4730-00-818-3872W2049 INTERCHANGEABLE
Elbow,tube
Mueller Brass Co.
Cross-Reference Index
Part NumberManufacturer
ASME B16.22 The American Society of Mechanical Engineers (USA)
B16-22-1951 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
279Q Beatrice Foods Co Taylor Freezer Div (USA)
W2131 PRIMARY Mueller Brass Co. (USA)
Related Parts
4730-00-053-0624INTERCHANGEABLE
ELBOW,TUBE
W-2388
4730-00-265-7019INTERCHANGEABLE
CAP,TUBE
4730-00-265-7020INTERCHANGEABLE
CAP,TUBE
4730-00-289-1271INTERCHANGEABLE
ELBOW,TUBE
4730-00-702-8804INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
4730-00-722-1295INTERCHANGEABLE
COUPLING,TUBE
4730-00-722-3579INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
4730-00-808-7817INTERCHANGEABLE
REDUCER,TUBE
W1339
4730-00-813-3193INTERCHANGEABLE
ELBOW,TUBE
4730-00-818-3872INTERCHANGEABLE
ELBOW,TUBE
W2049
4730-00-818-5190INTERCHANGEABLE
ELBOW,TUBE
4730-00-825-2490INTERCHANGEABLE
ELBOW,TUBE

Frequently Asked Questions

What is NSN 4730-00-359-7052?

NSN 4730-00-359-7052 is a Elbow,pipe to Tube, manufactured by Mueller Brass Co., classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-359-7052?

NSN 4730-00-359-7052 has 4 cross-referenced part numbers: ASME B16.22 (The American Society of Mechanical Engineers), B16-22-1951 (American National Standards Institute Incorporated Dba American National Standards Institute), 279Q (Beatrice Foods Co Taylor Freezer Div), W2131 (Mueller Brass Co.).

What NSN replaces 4730-00-359-7052?

There are 12 known substitutes for 4730-00-359-7052: 4730-00-053-0624, 4730-00-265-7019, 4730-00-265-7020 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of W2131?

Key specifications for W2131: Flow Angle: 90.0 DEGREES; Tubing Wall Nominal Thickness for Which Designed: 0.035 INCHES FIRST END IN; Connection Style: SOCKET (TUBE) FIRST END; Material: COPPER ALLOY OVERALL. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-359-7052 still in active supply?

NSN 4730-00-359-7052 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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