PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILU18250Union,pipe

Mindeco Corp · NSN 4730-00-189-2605 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-189-2605 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-189-2605. Primary manufacturer part number: MILU18250.
Features
  • Union,pipe — FSC 4730
  • Coupling Flange Shape: HEXAGON
  • Operating Pressure: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Nondefinitive Spec/std Data: XC TYPE
  • Material: IRON OVERALL
  • Operating Pressure: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Reducer Type: CONCENTRIC
  • Nominal Thread Size: 0.375 INCHES FIRST END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Iron Overall construction
General Description

The Union,pipe, cataloged under National Stock Number 4730-00-189-2605, 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 Mindeco Corp. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-189-2605
Primary Part NumberMILU18250
Item NameUnion,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMindeco Corp
StatusACTIVE
Coupling Flange ShapeHEXAGON
Operating Pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nondefinitive Spec/std DataXC TYPE
MaterialIRON OVERALL
Operating Pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Reducer TypeCONCENTRIC
Nominal Thread Size0.375 INCHES FIRST END IN
Coupling Flange ShapeHEXAGON
Specification/standard Data81349-MIL-U-18250 GOVERNMENT SPECIFICATION
Nominal Overall Length1.810 INCHES IN
Thread Series DesignatorNPT FIRST END
Style DesignatorSCREWED
Connection StylePLAIN (PIPE) FIRST END
Connection TypeTHREADED INTERNAL PIPE FIRST END
Seat TypeBEVELED
Specification/standard Data81349-MIL-U-18250 GOVERNMENT SPECIFICATION
Nominal Overall Length1.810 INCHES IN
Material Document and ClassificationASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorSCREWED
Seat TypeBEVELED
MaterialIRON OVERALL
Thread Series DesignatorNPT FIRST END
Nominal Thread Size0.375 INCHES FIRST END IN
Material Document and ClassificationASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Nondefinitive Spec/std DataXC TYPE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-189-2598 INTERCHANGEABLE
Union,pipe
4730-00-189-2599 INTERCHANGEABLE
Union,pipe
4730-00-189-2600 INTERCHANGEABLE
Union,pipe
4730-00-189-26021631-400 INTERCHANGEABLE
Union,pipe
Flaton Machine Works Inc.
4730-00-189-2606 INTERCHANGEABLE
Union,pipe
4730-00-189-2629 INTERCHANGEABLE
Union,pipe
4730-00-189-2630 INTERCHANGEABLE
Union,pipe
4730-00-189-2635 INTERCHANGEABLE
Union,pipe
4730-00-189-2638 INTERCHANGEABLE
Union,pipe
4730-00-189-2639 INTERCHANGEABLE
Union,pipe
Cross-Reference Index
Part NumberManufacturer
MILU18250 Mindeco Corp (USA)
MILU18250TYPEXC Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-00-189-2598INTERCHANGEABLE
UNION,PIPE
4730-00-189-2599INTERCHANGEABLE
UNION,PIPE
4730-00-189-2600INTERCHANGEABLE
UNION,PIPE
4730-00-189-2602INTERCHANGEABLE
UNION,PIPE
1631-400
4730-00-189-2606INTERCHANGEABLE
UNION,PIPE
4730-00-189-2629INTERCHANGEABLE
UNION,PIPE
4730-00-189-2630INTERCHANGEABLE
UNION,PIPE
4730-00-189-2635INTERCHANGEABLE
UNION,PIPE
4730-00-189-2638INTERCHANGEABLE
UNION,PIPE
4730-00-189-2639INTERCHANGEABLE
UNION,PIPE
4730-00-189-2645INTERCHANGEABLE
UNION,PIPE
4730-00-189-2646INTERCHANGEABLE
UNION,PIPE

Frequently Asked Questions

What is NSN 4730-00-189-2605?

NSN 4730-00-189-2605 is a Union,pipe, manufactured by Mindeco Corp, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-189-2605?

NSN 4730-00-189-2605 has 2 cross-referenced part numbers: MILU18250 (Mindeco Corp), MILU18250TYPEXC (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4730-00-189-2605?

There are 12 known substitutes for 4730-00-189-2605: 4730-00-189-2598, 4730-00-189-2599, 4730-00-189-2600 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILU18250?

Key specifications for MILU18250: Coupling Flange Shape: HEXAGON; Operating Pressure: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Nondefinitive Spec/std Data: XC TYPE; Material: IRON OVERALL. 25 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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