PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

839-131Reducer,pipe

Ipex Usa Llc · NSN 4730-00-163-4440 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-163-4440 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-163-4440. Primary manufacturer part number: 839-131.
Features
  • Reducer,pipe — FSC 4730
  • Connection Style: PLAIN (PIPE) FIRST END
  • Maximum Operating Temp: 85.0 CELSIUS SINGLE RESPONSE DEGC
  • Nominal Thread Size: 0.750 INCHES FIRST END IN
  • Nominal Overall Length: 2.000 INCHES IN
  • Connection Style: PLAIN (PIPE) SECOND END
  • Connection Type: THREADED INTERNAL PIPE FIRST END
  • Connection Type: THREADED EXTERNAL PIPE SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Plastic Polyvinyl Chloride (pvc) Overall construction
General Description

The Reducer,pipe, cataloged under National Stock Number 4730-00-163-4440, 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 Ipex Usa Llc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 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
NSN4730-00-163-4440
Primary Part Number839-131
Item NameReducer,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerIpex Usa Llc
StatusCANCELLED
Connection StylePLAIN (PIPE) FIRST END
Maximum Operating Temp85.0 CELSIUS SINGLE RESPONSE DEGC
Nominal Thread Size0.750 INCHES FIRST END IN
Nominal Overall Length2.000 INCHES IN
Connection StylePLAIN (PIPE) SECOND END
Connection TypeTHREADED INTERNAL PIPE FIRST END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Nominal Thread Size1.000 INCHES SECOND END IN
MaterialPLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
Thread Series DesignatorNPT ALL ENDS
Thread Series DesignatorNPT ALL ENDS
Nominal Thread Size0.750 INCHES FIRST END IN
Nominal Overall Length2.000 INCHES IN
MaterialPLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
Reducer TypeCONCENTRIC
Nominal Thread Size1.000 INCHES SECOND END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-302-5656536-2 INTERCHANGEABLE
Washer,shouldered and Recessed
Dynamic Air Engineering, Inc.
6220-00-371-758915A7138 INTERCHANGEABLE
Body
Napco International Llc Dba Napco International Inc
6350-00-442-9719100-2-6 INTERCHANGEABLE
Buzzer
Essex Products Group, Inc. Dba Industrial Timer Company
3030-00-444-200117860500 INTERCHANGEABLE
Belts,v,matched Set
Cummins Inc.
5340-00-449-26091107 INTERCHANGEABLE
Bumper
Atlantic India Rubber Co Inc
5930-00-489-01491339AS895-1 INTERCHANGEABLE
Switch,toggle
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
5975-00-504-8117STN50 INTERCHANGEABLE
Box Connector,electrical
Egs Electrical Group Appleton Div
6145-00-660-89755362 INTERCHANGEABLE
Wire,electrical
Whitney Blake Company Dba Whitney Blake Co
5935-00-702-60245362 INTERCHANGEABLE
Connector,receptacle,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5140-00-772-41425-3-62 INTERCHANGEABLE
Bag,tool
W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center
Cross-Reference Index
Part NumberManufacturer
4589K91 Mcmaster-Carr Supply Co (USA)
839-131C Spears Manufacturing Co. (USA)
5118-3-4 1X3/4 Nibco Inc (USA)
05050035 Nibco Inc Chemtrol Div (USA)
839-131 PRIMARY Ipex Usa Llc (USA)
5362 Eslon Thermoplastics Inc (USA)
05050035 Nibco Inc (USA)
Related Parts
5310-00-302-5656INTERCHANGEABLE
WASHER,SHOULDERED AND RECESSED
536-2
6220-00-371-7589INTERCHANGEABLE
BODY
15A7138
6350-00-442-9719INTERCHANGEABLE
BUZZER
100-2-6
3030-00-444-2001INTERCHANGEABLE
BELTS,V,MATCHED SET
17860500
5340-00-449-2609INTERCHANGEABLE
BUMPER
1107
5930-00-489-0149INTERCHANGEABLE
SWITCH,TOGGLE
1339AS895-1
5975-00-504-8117INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
STN50
6145-00-660-8975INTERCHANGEABLE
WIRE,ELECTRICAL
5362
5935-00-702-6024INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5362
5140-00-772-4142INTERCHANGEABLE
BAG,TOOL
5-3-62
4730-00-859-3445INTERCHANGEABLE
BUSHING,PIPE
839-131
5365-00-867-6743INTERCHANGEABLE
RING,SHREDDER
C-201228

Frequently Asked Questions

What is NSN 4730-00-163-4440?

NSN 4730-00-163-4440 is a Reducer,pipe, manufactured by Ipex Usa Llc, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-163-4440?

NSN 4730-00-163-4440 has 7 cross-referenced part numbers: 4589K91 (Mcmaster-Carr Supply Co), 839-131C (Spears Manufacturing Co.), 5118-3-4 1X3/4 (Nibco Inc), 05050035 (Nibco Inc Chemtrol Div), 839-131 (Ipex Usa Llc) and 2 more.

What NSN replaces 4730-00-163-4440?

There are 12 known substitutes for 4730-00-163-4440: 5310-00-302-5656, 6220-00-371-7589, 6350-00-442-9719 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 839-131?

Key specifications for 839-131: Connection Style: PLAIN (PIPE) FIRST END; Maximum Operating Temp: 85.0 CELSIUS SINGLE RESPONSE DEGC; Nominal Thread Size: 0.750 INCHES FIRST END IN; Nominal Overall Length: 2.000 INCHES IN. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-163-4440 still in active supply?

NSN 4730-00-163-4440 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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