PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

138C656H01Coupler,radar Receiver

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · NSN 5840-01-023-3237 · FSC 5840 · No Item Name Available
Verified by PartsTable
NSN 5840-01-023-3237 — this item is cataloged by the U.S. Government under National Stock Number 5840-01-023-3237. Primary manufacturer part number: 138C656H01.
Features
  • Coupler,radar Receiver — FSC 5840
  • Tuning Type: FIXED
  • Coupling Method: ELECTRONIC
  • Material: ALUMINUM ALLOY BODY
  • FSC Application Data: RADAR EQUIPMENT,EXCEPT AIRBORNE
  • 6 verified cross-references
  • Primary manufacturer: Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Applications
  • Applications requiring Aluminum Alloy Body construction
General Description

The Coupler,radar Receiver, cataloged under National Stock Number 5840-01-023-3237, is classified within Federal Supply Class 5840 (No Item Name Available) of the Communication, Detection, and Coherent Radiation Equipment group. The primary manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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: Active.

Technical Specifications
ParameterValue
NSN5840-01-023-3237
Primary Part Number138C656H01
Item NameCoupler,radar Receiver
FSC / FSG5840 / 58 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
StatusACTIVE
Tuning TypeFIXED
Coupling MethodELECTRONIC
MaterialALUMINUM ALLOY BODY
FSC Application DataRADAR EQUIPMENT,EXCEPT AIRBORNE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-001-47928422 INTERCHANGEABLE
Nut,plain,hexagon
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
3110-00-155-8894R16FF-1V1 INTERCHANGEABLE
Bearing,ball,annular
Schatz Bearing Corporation Dba Schatz Bearing Corp
3110-00-156-5090 INTERCHANGEABLE
Bearing,ball,annular
5360-00-216-9339 INTERCHANGEABLE
Spring,flat
5945-00-259-697155A5513ITEM9 INTERCHANGEABLE
Relay,electromagnetic
Westinghouse Electric Corp
5905-00-279-1875 INTERCHANGEABLE
Resistor,fixed,composition
2940-00-485-50992209 INTERCHANGEABLE
Air Cleaner,intake
Genuine Parts Company Div Automotive Parts Group, Dba Napa
6230-00-520-8797 INTERCHANGEABLE
Spotlight
5940-00-548-8201 INTERCHANGEABLE
Splice,conductor
6130-00-624-1697 INTERCHANGEABLE
Power Supply
Cross-Reference Index
Part NumberManufacturer
138C656H01 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
138C656H01 Northrop Grumman Support Services Corp (USA)
2209 Kevlin Corporation Dba Cobham Sensor Systems Div Kevlin Division (USA)
1912A00 Atlantic Microwave Corporation Div Cobham Electronic Systems (USA)
1912A00 Axillon Aerospace (baltimore) Inc. (USA)
2209 Frontgrade Technologies Inc. (USA)
Related Parts
5310-00-001-4792INTERCHANGEABLE
NUT,PLAIN,HEXAGON
8422
3110-00-155-8894INTERCHANGEABLE
BEARING,BALL,ANNULAR
R16FF-1V1
3110-00-156-5090INTERCHANGEABLE
BEARING,BALL,ANNULAR
5360-00-216-9339INTERCHANGEABLE
SPRING,FLAT
5945-00-259-6971INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
55A5513ITEM9
5905-00-279-1875INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
2940-00-485-5099INTERCHANGEABLE
AIR CLEANER,INTAKE
2209
6230-00-520-8797INTERCHANGEABLE
SPOTLIGHT
5940-00-548-8201INTERCHANGEABLE
SPLICE,CONDUCTOR
6130-00-624-1697INTERCHANGEABLE
POWER SUPPLY
4920-00-708-3039INTERCHANGEABLE
PLATE,FRONT
2209
5120-00-752-9755INTERCHANGEABLE
PLIERS,RETAINING RING

Frequently Asked Questions

What is NSN 5840-01-023-3237?

NSN 5840-01-023-3237 is a Coupler,radar Receiver, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5840 (No Item Name Available). Status: active.

What are the part numbers for NSN 5840-01-023-3237?

NSN 5840-01-023-3237 has 6 cross-referenced part numbers: 138C656H01 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 138C656H01 (Northrop Grumman Support Services Corp), 2209 (Kevlin Corporation Dba Cobham Sensor Systems Div Kevlin Division), 1912A00 (Atlantic Microwave Corporation Div Cobham Electronic Systems), 1912A00 (Axillon Aerospace (baltimore) Inc.) and 1 more.

What NSN replaces 5840-01-023-3237?

There are 12 known substitutes for 5840-01-023-3237: 5310-00-001-4792, 3110-00-155-8894, 3110-00-156-5090 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 138C656H01?

Key specifications for 138C656H01: Tuning Type: FIXED; Coupling Method: ELECTRONIC; Material: ALUMINUM ALLOY BODY; FSC Application Data: RADAR EQUIPMENT,EXCEPT AIRBORNE. 4 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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