PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

500189-3Tailpiece,union

Danfoss Power Solutions II, Llc · NSN 4730-01-138-7476 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-138-7476 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-138-7476. Primary manufacturer part number: 500189-3.
Features
  • Tailpiece,union — FSC 4730
  • Flange Outside Diameter: 4.370 INCHES NOMINAL IN
  • End Connection Type: BRAZED
  • Seat Type: GASKET
  • Material: COPPER ALLOY
  • Nominal Pipe Size Designation: 3.000 INCHES IN
  • 6 verified cross-references
  • Primary manufacturer: Danfoss Power Solutions II, Llc
Applications
  • Applications requiring Copper Alloy construction
General Description

The Tailpiece,union, cataloged under National Stock Number 4730-01-138-7476, 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 Danfoss Power Solutions II, Llc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-138-7476
Primary Part Number500189-3
Item NameTailpiece,union
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerDanfoss Power Solutions II, Llc
StatusACTIVE
Flange Outside Diameter4.370 INCHES NOMINAL IN
End Connection TypeBRAZED
Seat TypeGASKET
MaterialCOPPER ALLOY
Nominal Pipe Size Designation3.000 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3110-00-100-0237 INTERCHANGEABLE
Cone and Rollers,tapered Roller
5330-00-286-682449793 INTERCHANGEABLE
Seal,plain Encased
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
3010-01-132-7470500189 INTERCHANGEABLE
Coupling,shaft,flexible
Coleman Microwave Co Dba Coleman Microwave Corp Div Coleman Microwave Company
6665-01-143-458250-0189 INTERCHANGEABLE
Gas Cylinder,calibrator,automati
Bacharach, Inc.
4730-01-284-9111500189 INTERCHANGEABLE
Fitting,lubricant Pressure Relie
Level 10 Industries, Inc. Div Level 10 Industries
5935-01-340-2525500-189-3 INTERCHANGEABLE
Connector,receptacle,electrical
B.c. Systems Inc. Dba Bc Systems Inc
4320-01-521-2861500189 INTERCHANGEABLE
Connector,fluid,pump
B/e Aerospace, Inc. Dba Interturbine Div Oxygen & PSU Systems
6850-01-631-7493500189 INTERCHANGEABLE
Inhibitor,corrosion,vapor Barrie
Tri-Tec Manufacturing Llc
Cross-Reference Index
Part NumberManufacturer
500189-3M Danfoss Power Solutions II, Llc (USA)
500189-3 PRIMARY Danfoss Power Solutions II, Llc (USA)
C18090 PRIMARY Hydrasearch Company, Llc (USA)
4730PL1263076 Jednolity Indeks Materialowy - Uniform Material Index (POL)
500189 Danfoss Power Solutions II, Llc (USA)
TP-3MSB Hydrasearch Company, Llc (USA)
Related Parts
3110-00-100-0237INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
5330-00-286-6824INTERCHANGEABLE
SEAL,PLAIN ENCASED
49793
3010-01-132-7470INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
500189
6665-01-143-4582INTERCHANGEABLE
GAS CYLINDER,CALIBRATOR,AUTOMATI
50-0189
4730-01-284-9111INTERCHANGEABLE
FITTING,LUBRICANT PRESSURE RELIE
500189
5935-01-340-2525INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
500-189-3
4320-01-521-2861INTERCHANGEABLE
CONNECTOR,FLUID,PUMP
500189
6850-01-631-7493INTERCHANGEABLE
INHIBITOR,CORROSION,VAPOR BARRIE
500189

Frequently Asked Questions

What is NSN 4730-01-138-7476?

NSN 4730-01-138-7476 is a Tailpiece,union, manufactured by Danfoss Power Solutions II, Llc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-138-7476?

NSN 4730-01-138-7476 has 6 cross-referenced part numbers: 500189-3M (Danfoss Power Solutions II, Llc), 500189-3 (Danfoss Power Solutions II, Llc), C18090 (Hydrasearch Company, Llc), 4730PL1263076 (Jednolity Indeks Materialowy - Uniform Material Index), 500189 (Danfoss Power Solutions II, Llc) and 1 more.

What NSN replaces 4730-01-138-7476?

There are 8 known substitutes for 4730-01-138-7476: 3110-00-100-0237, 5330-00-286-6824, 3010-01-132-7470 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 500189-3?

Key specifications for 500189-3: Flange Outside Diameter: 4.370 INCHES NOMINAL IN; End Connection Type: BRAZED; Seat Type: GASKET; Material: COPPER ALLOY. 6 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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