PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7887522-5Relay,thermal

Lockheed Martin Corporation Div Rms · NSN 5945-00-273-6864 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-273-6864 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-273-6864. Primary manufacturer part number: 7887522-5.
Features
  • Relay,thermal — FSC 5945
  • Overall Diameter: 1.250 INCHES NOMINAL IN
  • Terminal Type and Quantity: 4 PIN
  • Delay Time in Seconds: 180.0 FIXED OPERATE NOMINAL
  • Contact Maximum Voltage Rating in Volts: 250.0 AC AND 150.0 DC
  • Mounting Facility Type and Quantity: 1 OCTAL BASE PLUG-IN
  • Contact Maximum Current Rating in Amps: 3.0 AC OR 3.0 DC
  • Environmental Protection: HERMETIC
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,thermal, cataloged under National Stock Number 5945-00-273-6864, 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. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-273-6864
Primary Part Number7887522-5
Item NameRelay,thermal
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms
StatusACTIVE
Overall Diameter1.250 INCHES NOMINAL IN
Terminal Type and Quantity4 PIN
Delay Time in Seconds180.0 FIXED OPERATE NOMINAL
Contact Maximum Voltage Rating in Volts250.0 AC AND 150.0 DC
Mounting Facility Type and Quantity1 OCTAL BASE PLUG-IN
Contact Maximum Current Rating in Amps3.0 AC OR 3.0 DC
Environmental ProtectionHERMETIC
Heater Power Rating in Watts5.0
Heater Voltage Rating in Volts130.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5945-00-246-8489 INTERCHANGEABLE
Relay,thermal
5998-01-603-949079C0967-16 INTERCHANGEABLE
Nrp,cpu Card
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
Cross-Reference Index
Part NumberManufacturer
B1578 Meggitt (new Hampshire), Inc (USA)
7887522-5 PRIMARY Lockheed Martin Corporation Div Rms (USA)
Related Parts
5945-00-246-8489INTERCHANGEABLE
RELAY,THERMAL
5998-01-603-9490INTERCHANGEABLE
NRP,CPU CARD
79C0967-16

Frequently Asked Questions

What is NSN 5945-00-273-6864?

NSN 5945-00-273-6864 is a Relay,thermal, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-273-6864?

NSN 5945-00-273-6864 has 2 cross-referenced part numbers: B1578 (Meggitt (new Hampshire), Inc), 7887522-5 (Lockheed Martin Corporation Div Rms).

What NSN replaces 5945-00-273-6864?

There are 2 known substitutes for 5945-00-273-6864: 5945-00-246-8489, 5998-01-603-9490. Verify interchangeability with system specifications before substitution.

What are the specifications of 7887522-5?

Key specifications for 7887522-5: Overall Diameter: 1.250 INCHES NOMINAL IN; Overall Length: 3.250 INCHES NOMINAL IN; Terminal Type and Quantity: 4 PIN; Delay Time in Seconds: 180.0 FIXED OPERATE NOMINAL. 11 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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