PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

681724-3Relay,thermal

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 5945-00-655-1484 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-655-1484 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-655-1484. Primary manufacturer part number: 681724-3.
Features
  • Relay,thermal — FSC 5945
  • Heater Voltage Rating in Volts: 550.0
  • Terminal Type and Quantity: 7 WIRE HOOK
  • Contact Arrangement: SINGLE POLE, SINGLE THROW, NORMALLY CLOSED
  • Environmental Protection: HUMIDITY PROOF
  • Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S)
  • Contact Maximum Voltage Rating in Volts: 500.0 AC
  • Contact Maximum Current Rating in Amps: 5.0 AC
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,thermal, cataloged under National Stock Number 5945-00-655-1484, 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 Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5945-00-655-1484
Primary Part Number681724-3
Item NameRelay,thermal
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusCANCELLED
Heater Voltage Rating in Volts550.0
Terminal Type and Quantity7 WIRE HOOK
Contact ArrangementSINGLE POLE, SINGLE THROW, NORMALLY CLOSED
Environmental ProtectionHUMIDITY PROOF
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S)
Contact Maximum Voltage Rating in Volts500.0 AC
Contact Maximum Current Rating in Amps5.0 AC
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5945-00-048-7548271-11023P1 INTERCHANGEABLE
Relay,thermal
Raytheon Company Dba Raytheon Co
7050-00-145-99184913316-46 INTERCHANGEABLE
Duplex Overload
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
5910-00-435-6485101182 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Astronics Test Systems Inc
5910-00-666-761910525660-2 INTERCHANGEABLE
Capacitor,variable,ceramic Diele
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
5945-00-698-7532681724-1 INTERCHANGEABLE
Relay,thermal
Lockheed Martin Corporation Div Rms - Mitchel Field
5945-01-151-11426957ED14-26 INTERCHANGEABLE
Relay,thermal
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
4820-01-165-9668N669XN552 ITEM 7 INTERCHANGEABLE
Diaphragm,valve,flat
Leslie Controls, Inc. Dba Leslie Controls Inc
5945-01-198-63326957ED14-12 INTERCHANGEABLE
Relay,thermal
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
4330-01-431-6621X6175 INTERCHANGEABLE
Pneumatic Muffler,exhaust-Intake
Porex Technologies Corp
Cross-Reference Index
Part NumberManufacturer
6957ED14-1AWITH9104H3959 Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA)
6957ED14-1AWITH-H3959COILS Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA)
01-435-0157-5 PIECE 206 Flowserve Corp Dba Automax Actuators Div Flowserve Us Company (USA)
N750 Eaton Corp Opns & Technical Center (USA)
681724-3 PRIMARY Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
Related Parts
5945-00-048-7548INTERCHANGEABLE
RELAY,THERMAL
271-11023P1
7050-00-145-9918INTERCHANGEABLE
DUPLEX OVERLOAD
4913316-46
5910-00-435-6485INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
101182
5910-00-666-7619INTERCHANGEABLE
CAPACITOR,VARIABLE,CERAMIC DIELE
10525660-2
5945-00-698-7532INTERCHANGEABLE
RELAY,THERMAL
681724-1
5945-01-151-1142INTERCHANGEABLE
RELAY,THERMAL
6957ED14-26
4820-01-165-9668INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
N669XN552 ITEM 7
5945-01-198-6332INTERCHANGEABLE
RELAY,THERMAL
6957ED14-12
4330-01-431-6621INTERCHANGEABLE
PNEUMATIC MUFFLER,EXHAUST-INTAKE
X6175

Frequently Asked Questions

What is NSN 5945-00-655-1484?

NSN 5945-00-655-1484 is a Relay,thermal, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-655-1484?

NSN 5945-00-655-1484 has 5 cross-referenced part numbers: 6957ED14-1AWITH9104H3959 (Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc), 6957ED14-1AWITH-H3959COILS (Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc), 01-435-0157-5 PIECE 206 (Flowserve Corp Dba Automax Actuators Div Flowserve Us Company), N750 (Eaton Corp Opns & Technical Center), 681724-3 (Lockheed Martin Corporation Div Rms - Mitchel Field).

What NSN replaces 5945-00-655-1484?

There are 9 known substitutes for 5945-00-655-1484: 5945-00-048-7548, 7050-00-145-9918, 5910-00-435-6485 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 681724-3?

Key specifications for 681724-3: Heater Voltage Rating in Volts: 550.0; Terminal Type and Quantity: 7 WIRE HOOK; Contact Arrangement: SINGLE POLE, SINGLE THROW, NORMALLY CLOSED; Overall Height: 3.562 INCHES NOMINAL IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-655-1484 still in active supply?

NSN 5945-00-655-1484 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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