PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

187394Coupling,pipe

Komatsu America Corp. · NSN 4730-00-278-2697 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-278-2697 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-278-2697. Primary manufacturer part number: 187394.
Features
  • Coupling,pipe — FSC 4730
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
  • Nominal Overall Length: 0.812 INCHES IN
  • Nominal Thread Size: 0.125 INCHES ALL ENDS IN
  • Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Style Designator: PLAIN
  • Thread Series Designator: NPT ALL ENDS
  • Material: STEEL OVERALL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Coupling,pipe, cataloged under National Stock Number 4730-00-278-2697, 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 Komatsu America Corp.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 14 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-278-2697
Primary Part Number187394
Item NameCoupling,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerKomatsu America Corp.
StatusCANCELLED
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Nominal Overall Length0.812 INCHES IN
Nominal Thread Size0.125 INCHES ALL ENDS IN
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Style DesignatorPLAIN
Thread Series DesignatorNPT ALL ENDS
MaterialSTEEL OVERALL
Connection StylePLAIN (PIPE) ALL ENDS
Media for Which DesignedSTEAM SINGLE RESPONSE
Nominal Pipe Size Accommodated0.125 INCHES ALL ENDS IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5985-00-072-14312195693PC1 INTERCHANGEABLE
Waveguide Assembly
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
2805-00-356-1579 INTERCHANGEABLE
Valve,poppet,engine
Cross-Reference Index
Part NumberManufacturer
187394 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
187394 General Motors Corp (USA)
11A7W1 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
187394 Euclid Inc (USA)
11A7W1 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
9236967 Terex Corp (USA)
187394 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
187394 Komatsu American Intl Co (USA)
11A7W1 Siemens Energy, Inc. Dba Dresser-Rand (USA)
187394 PRIMARY Komatsu America Corp. (USA)
187394 Navistar International Corporation Dba Navistar (USA)
11A7W1 Ingersoll Rand Co (USA)
S902 PRIMARY Cummins Inc. (USA)
A11260 PRIMARY Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
5240598 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Related Parts
5985-00-072-1431INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
2195693PC1
2805-00-356-1579INTERCHANGEABLE
VALVE,POPPET,ENGINE

Frequently Asked Questions

What is NSN 4730-00-278-2697?

NSN 4730-00-278-2697 is a Coupling,pipe, manufactured by Komatsu America Corp., classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-278-2697?

NSN 4730-00-278-2697 has 15 cross-referenced part numbers: 187394 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 187394 (General Motors Corp), 11A7W1 (Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture), 187394 (Euclid Inc), 11A7W1 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions) and 10 more.

What NSN replaces 4730-00-278-2697?

There are 2 known substitutes for 4730-00-278-2697: 5985-00-072-1431, 2805-00-356-1579. Verify interchangeability with system specifications before substitution.

What are the specifications of 187394?

Key specifications for 187394: Connection Type: THREADED INTERNAL PIPE ALL ENDS; Nominal Overall Length: 0.812 INCHES IN; Nominal Thread Size: 0.125 INCHES ALL ENDS IN; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-278-2697 still in active supply?

NSN 4730-00-278-2697 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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