PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

818934Relay,thermal

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 5945-00-487-7966 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-487-7966 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-487-7966. Primary manufacturer part number: 818934.
Features
  • Relay,thermal — FSC 5945
  • Overall Diameter: 1.275 INCHES MAXIMUM IN
  • Heater Power Rating in Watts: 5.0
  • Contact Maximum Voltage Rating in Volts: 27.5 DC
  • Heater Voltage Rating in Volts: 27.5
  • Contact Maximum Current Rating in Amps: 0.5 DC
  • Terminal Type and Quantity: 8 PIN
  • Mounting Facility Type and Quantity: 1 OCTAL BASE PLUG-IN
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,thermal, cataloged under National Stock Number 5945-00-487-7966, 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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5945-00-487-7966
Primary Part Number818934
Item NameRelay,thermal
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusCANCELLED
Overall Diameter1.275 INCHES MAXIMUM IN
Heater Power Rating in Watts5.0
Contact Maximum Voltage Rating in Volts27.5 DC
Heater Voltage Rating in Volts27.5
Contact Maximum Current Rating in Amps0.5 DC
Terminal Type and Quantity8 PIN
Mounting Facility Type and Quantity1 OCTAL BASE PLUG-IN
Delay Time in Seconds120.0 FIXED OPERATE MINIMUM AND 180.0 FIXED OPERATE MAXIMUM
Contact ArrangementSINGLE POLE, SINGLE THROW, NORMALLY OPEN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
3110-00-364-84521911263 INTERCHANGEABLE
Plate,retaining,bearing
Borgwarner Pds (anderson), L.l.c.
Cross-Reference Index
Part NumberManufacturer
818934 PRIMARY Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
501B1797 Jettron Products Inc (USA)
E2021 Thermal Controls Div of Magnetic Windings Co (USA)
Related Parts
3110-00-364-8452INTERCHANGEABLE
PLATE,RETAINING,BEARING
1911263

Frequently Asked Questions

What is NSN 5945-00-487-7966?

NSN 5945-00-487-7966 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 5945-00-487-7966?

NSN 5945-00-487-7966 has 3 cross-referenced part numbers: 818934 (Lockheed Martin Corporation Div Rms - Mitchel Field), 501B1797 (Jettron Products Inc), E2021 (Thermal Controls Div of Magnetic Windings Co).

What NSN replaces 5945-00-487-7966?

There is 1 known substitute for 5945-00-487-7966: 3110-00-364-8452. Verify interchangeability with system specifications before substitution.

What are the specifications of 818934?

Key specifications for 818934: Overall Diameter: 1.275 INCHES MAXIMUM IN; Heater Power Rating in Watts: 5.0; Contact Maximum Voltage Rating in Volts: 27.5 DC; Heater Voltage Rating in Volts: 27.5. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-487-7966 still in active supply?

NSN 5945-00-487-7966 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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