PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-C-491399Relay,solid State

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5945-00-066-0261 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-066-0261 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-066-0261. Primary manufacturer part number: SM-C-491399.
Features
  • Relay,solid State — FSC 5945
  • 5 verified cross-references
  • Primary manufacturer: Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,solid State, cataloged under National Stock Number 5945-00-066-0261, 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 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRelay,solid State
FSC / FSG5945 — No Item Name Available (FSG 59)
ManufacturersElectronic Specialty Corp Relay Div (CAGE 98927); Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (CAGE 80063); Raytheon Company Div Rmd Strategic (CAGE 05869); Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging (CAGE 96182); Crydom Corp (CAGE 14704)
Technical Specifications
ParameterValue
NSN5945-00-066-0261
Primary Part NumberSM-C-491399
Item NameRelay,solid State
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2835-00-056-614526510 INTERCHANGEABLE
Control,engine Acce
Rtx Corporation Div Pratt & Whitney
2990-00-394-57661UET01 INTERCHANGEABLE
Monitor,engine Temperature
Precision Aerospace Corporation Dba Precision Engine Control
2930-00-844-74232121524 INTERCHANGEABLE
Water Outlet,engine
Chrysler Realty Company Llc Dba Daimler Chrysler
4320-01-234-7065 INTERCHANGEABLE
Rotor,pump
Cross-Reference Index
Part NumberManufacturer
RY-668 Electronic Specialty Corp Relay Div (USA)
SM-C-491399 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
719098-016 Raytheon Company Div Rmd Strategic (USA)
265-100 Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging (USA)
CL-349 Crydom Corp (USA)
Related Parts
2835-00-056-6145INTERCHANGEABLE
CONTROL,ENGINE ACCE
26510
2990-00-394-5766INTERCHANGEABLE
MONITOR,ENGINE TEMPERATURE
1UET01
2930-00-844-7423INTERCHANGEABLE
WATER OUTLET,ENGINE
2121524
4320-01-234-7065INTERCHANGEABLE
ROTOR,PUMP

Frequently Asked Questions

What is NSN 5945-00-066-0261?

NSN 5945-00-066-0261 is a Relay,solid State, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-066-0261?

NSN 5945-00-066-0261 has 5 cross-referenced part numbers: RY-668 (Electronic Specialty Corp Relay Div), SM-C-491399 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 719098-016 (Raytheon Company Div Rmd Strategic), 265-100 (Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging), CL-349 (Crydom Corp).

What NSN replaces 5945-00-066-0261?

There are 4 known substitutes for 5945-00-066-0261: 2835-00-056-6145, 2990-00-394-5766, 2930-00-844-7423 and 1 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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