PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2237Relay,electromagnetic

Jennings Technology Company Llc Dba Jennings · NSN 5945-01-185-5264 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-01-185-5264 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-185-5264. Primary manufacturer part number: 2237.
Features
  • Relay,electromagnetic — FSC 5945
  • Operating Voltage Rating and Type at Specified Temp: 16.0 VOLTS DC 25 DEG CELSIUS ALL WINDINGS
  • Terminal Type and Quantity: 4 PIN ENERGIZING ELEMENT
  • Nonpile-Up Main Contact Arrangement: 1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED
  • Terminal Type and Quantity: 2 TAB, SOLDER LUG CONTACTS
  • Mounting Facility Type and Quantity: 4 TERMINAL SINGLE MOUNTING FACILITY
  • Main Contact Load Current Rating at Maximum Rated Voltage: 10.0 AMPERES AC RESISTIVE LOAD
  • Main Contact Maximum Voltage Rating in Volts: 3600.0 AC
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-01-185-5264, is classified within Federal Supply Class 5945 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Jennings Technology Company Llc Dba Jennings. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN5945-01-185-5264
Primary Part Number2237
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerJennings Technology Company Llc Dba Jennings
StatusACTIVE
Operating Voltage Rating and Type at Specified Temp16.0 VOLTS DC 25 DEG CELSIUS ALL WINDINGS
Terminal Type and Quantity4 PIN ENERGIZING ELEMENT
Nonpile-Up Main Contact Arrangement1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED
Terminal Type and Quantity2 TAB, SOLDER LUG CONTACTS
Mounting Facility Type and Quantity4 TERMINAL SINGLE MOUNTING FACILITY
Main Contact Load Current Rating at Maximum Rated Voltage10.0 AMPERES AC RESISTIVE LOAD
Main Contact Maximum Voltage Rating in Volts3600.0 AC
Duty TypeINTERMITTENT
Environmental ProtectionSHOCK RESISTANT AND VIBRATION RESISTANT AND HERMETIC
Winding Quantity2
Winding DC Resistance Rating47.0 OHMS NOMINAL ALL WINDINGS
Coil Quantity2
Overall Diameter0.650 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6660-00-075-6666 INTERCHANGEABLE
Barometer,aneroid
4520-00-143-92152237 INTERCHANGEABLE
Heating Element,electrical,nonim
Duke Mfg Co
5310-00-208-8892 INTERCHANGEABLE
Nut,plain,round
5330-00-252-66392237 INTERCHANGEABLE
Gasket
Bae Systems Land & Armaments L.p.
6685-00-301-997022-37 INTERCHANGEABLE
Gage,pressure,dial Indicating
Circor Aerospace, Inc. Dba Circor Aerospace Inc
5365-00-350-54425824FX INTERCHANGEABLE
Plug,machine Thread
Oshkosh Defense Llc
6640-00-404-50001220-4L INTERCHANGEABLE
Bottle,aspirator
Corning Incorporated Div Life Sci, Opt Fiber, Environ, Specialty Mtl, R&d, Mte
5905-00-442-1935 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
5950-00-646-2278 INTERCHANGEABLE
Transformer,power
2940-00-857-1982101237 INTERCHANGEABLE
Filter Element,intake Air Cleane
Cummins Filtration Inc.
Cross-Reference Index
Part NumberManufacturer
2237 Jennings Technology Company Llc Dba Jennings (USA)
RF40-26S Jennings Technology Company Llc Dba Jennings (USA)
Related Parts
6660-00-075-6666INTERCHANGEABLE
BAROMETER,ANEROID
4520-00-143-9215INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
2237
5310-00-208-8892INTERCHANGEABLE
NUT,PLAIN,ROUND
5330-00-252-6639INTERCHANGEABLE
GASKET
2237
6685-00-301-9970INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
22-37
5365-00-350-5442INTERCHANGEABLE
PLUG,MACHINE THREAD
5824FX
6640-00-404-5000INTERCHANGEABLE
BOTTLE,ASPIRATOR
1220-4L
5905-00-442-1935INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
5950-00-646-2278INTERCHANGEABLE
TRANSFORMER,POWER
2940-00-857-1982INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
101237
6150-01-066-8254INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
2237
3040-01-239-9187INTERCHANGEABLE
PAWL
2237

Frequently Asked Questions

What is NSN 5945-01-185-5264?

NSN 5945-01-185-5264 is a Relay,electromagnetic, manufactured by Jennings Technology Company Llc Dba Jennings, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-01-185-5264?

NSN 5945-01-185-5264 has 2 cross-referenced part numbers: 2237 (Jennings Technology Company Llc Dba Jennings), RF40-26S (Jennings Technology Company Llc Dba Jennings).

What NSN replaces 5945-01-185-5264?

There are 12 known substitutes for 5945-01-185-5264: 6660-00-075-6666, 4520-00-143-9215, 5310-00-208-8892 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2237?

Key specifications for 2237: Operating Voltage Rating and Type at Specified Temp: 16.0 VOLTS DC 25 DEG CELSIUS ALL WINDINGS; Terminal Type and Quantity: 4 PIN ENERGIZING ELEMENT; Nonpile-Up Main Contact Arrangement: 1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED; Terminal Type and Quantity: 2 TAB, SOLDER LUG CONTACTS. 14 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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