PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

443990Reducer,pipe

Nd Defense Llc · NSN 4730-01-194-6819 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-194-6819 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-194-6819. Primary manufacturer part number: 443990.
Features
  • Reducer,pipe — FSC 4730
  • 4 verified cross-references
  • Primary manufacturer: Nd Defense Llc
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Reducer,pipe, cataloged under National Stock Number 4730-01-194-6819, 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 Nd Defense Llc. This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameReducer,pipe
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersKomatsu American Intl Co (CAGE 29510); Nd Defense Llc (CAGE 338X5)
Technical Specifications
ParameterValue
NSN4730-01-194-6819
Primary Part Number443990
Item NameReducer,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerNd Defense Llc
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
4730-00-278-3167209P-12-8 INTERCHANGEABLE
Bushing,pipe
Parker-Hannifin Corp Div Fluid System Connector Division
4730-00-278-4822331C188H11 INTERCHANGEABLE
Elbow,pipe
Northrop Grumman Support Services Corp
4730-00-878-4199SAE J530 6-4 130137B INTERCHANGEABLE
Reducer,pipe
Sae International Dba Sae International
4730-01-568-58712214P-8-8 INTERCHANGEABLE
Elbow,pipe to Tube
Parker-Hannifin Corp Div Fluid System Connector Division
Cross-Reference Index
Part NumberManufacturer
443990 Komatsu American Intl Co (USA)
443990 PRIMARY Nd Defense Llc (USA)
ESP-M-1.101-GS Nd Defense Llc (USA)
ESP-M-1.103-PP Nd Defense Llc (USA)
Related Parts
4730-00-278-3167INTERCHANGEABLE
BUSHING,PIPE
209P-12-8
4730-00-278-4822INTERCHANGEABLE
ELBOW,PIPE
331C188H11
4730-00-878-4199INTERCHANGEABLE
REDUCER,PIPE
SAE J530 6-4 130137B
4730-01-568-5871INTERCHANGEABLE
ELBOW,PIPE TO TUBE
2214P-8-8

Frequently Asked Questions

What is NSN 4730-01-194-6819?

NSN 4730-01-194-6819 is a Reducer,pipe, manufactured by Nd Defense Llc, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-01-194-6819?

NSN 4730-01-194-6819 has 4 cross-referenced part numbers: 443990 (Komatsu American Intl Co), 443990 (Nd Defense Llc), ESP-M-1.101-GS (Nd Defense Llc), ESP-M-1.103-PP (Nd Defense Llc).

What NSN replaces 4730-01-194-6819?

There are 4 known substitutes for 4730-01-194-6819: 4730-00-278-3167, 4730-00-278-4822, 4730-00-878-4199 and 1 more. Verify interchangeability with system specifications before substitution.

Is NSN 4730-01-194-6819 still in active supply?

NSN 4730-01-194-6819 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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