PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

877026Relay,thermal

L3 Aviation Products, Inc. Dba L3 Technologies · NSN 5945-00-249-9776 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-249-9776 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-249-9776. Primary manufacturer part number: 877026.
Features
  • Relay,thermal — FSC 5945
  • Overall Diameter: 1.275 INCHES NOMINAL IN
  • Delay Time in Seconds: 185.0 ADJUSTABLE OPERATE MINIMUM AND 242.0 ADJUSTABLE OPERATE MAXIMUM
  • Environmental Protection: HERMETIC
  • Heater Power Rating in Watts: 5.0
  • Heater Voltage Rating in Volts: 117.0
  • Contact Maximum Voltage Rating in Volts: 450.0 AC
  • Terminal Type and Quantity: 8 PIN
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,thermal, cataloged under National Stock Number 5945-00-249-9776, 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 L3 Aviation Products, Inc. Dba L3 Technologies. Government technical data includes 10 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-249-9776
Primary Part Number877026
Item NameRelay,thermal
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerL3 Aviation Products, Inc. Dba L3 Technologies
StatusACTIVE
Overall Diameter1.275 INCHES NOMINAL IN
Delay Time in Seconds185.0 ADJUSTABLE OPERATE MINIMUM AND 242.0 ADJUSTABLE OPERATE MAXIMUM
Environmental ProtectionHERMETIC
Heater Power Rating in Watts5.0
Heater Voltage Rating in Volts117.0
Contact Maximum Voltage Rating in Volts450.0 AC
Terminal Type and Quantity8 PIN
Mounting Facility Type and Quantity1 OCTAL BASE PLUG-IN
Contact ArrangementSINGLE POLE, SINGLE THROW, NORMALLY OPEN
Contact Maximum Current Rating in Amps3.0 AC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6750-01-382-7372 INTERCHANGEABLE
Film,photographic
Cross-Reference Index
Part NumberManufacturer
877026 L3 Aviation Products, Inc. Dba L3 Technologies (USA)
501B-2109 Jettron Products Inc (USA)
Related Parts
6750-01-382-7372INTERCHANGEABLE
FILM,PHOTOGRAPHIC

Frequently Asked Questions

What is NSN 5945-00-249-9776?

NSN 5945-00-249-9776 is a Relay,thermal, manufactured by L3 Aviation Products, Inc. Dba L3 Technologies, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-249-9776?

NSN 5945-00-249-9776 has 2 cross-referenced part numbers: 877026 (L3 Aviation Products, Inc. Dba L3 Technologies), 501B-2109 (Jettron Products Inc).

What NSN replaces 5945-00-249-9776?

There is 1 known substitute for 5945-00-249-9776: 6750-01-382-7372. Verify interchangeability with system specifications before substitution.

What are the specifications of 877026?

Key specifications for 877026: Overall Length: 3.250 INCHES NOMINAL IN; Overall Diameter: 1.275 INCHES NOMINAL IN; Delay Time in Seconds: 185.0 ADJUSTABLE OPERATE MINIMUM AND 242.0 ADJUSTABLE OPERATE MAXIMUM; Environmental Protection: HERMETIC. 12 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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