PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PS661Relay,electromagnetic

Microsemi Corp.-Power Management Group · NSN 5945-00-269-3052 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-269-3052 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-269-3052. Primary manufacturer part number: PS661.
Features
  • Relay,electromagnetic — FSC 5945
  • Duty Type: CONTINUOUS
  • Winding Quantity: 1
  • Winding DC Resistance Rating: 1.44 KILOHMS NOMINAL SINGLE WINDING
  • Nondefinitive Spec/std Data: X66D8213 REFERENCE NUMBER
  • Mounting Facility Type and Quantity: 1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
  • Terminal Type and Quantity: 5 PIN ALL FUNCTIONS
  • Main Contact Maximum Voltage Rating in Volts: 1000.0 DC
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-269-3052, 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 Microsemi Corp.-Power Management Group. Government technical data includes 12 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
NSN5945-00-269-3052
Primary Part NumberPS661
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerMicrosemi Corp.-Power Management Group
StatusACTIVE
Duty TypeCONTINUOUS
Winding Quantity1
Winding DC Resistance Rating1.44 KILOHMS NOMINAL SINGLE WINDING
Nondefinitive Spec/std DataX66D8213 REFERENCE NUMBER
Mounting Facility Type and Quantity1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
Terminal Type and Quantity5 PIN ALL FUNCTIONS
Main Contact Maximum Voltage Rating in Volts1000.0 DC
Operating Voltage Rating and Type at Specified Temp24.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Nonpile-Up Main Contact Arrangement1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Coil Quantity1
Environmental ProtectionDUSTPROOF
Main Contact Load Current Rating at Maximum Rated Voltage50.0 MILLIAMPERES DC RESISTIVE LOAD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6850-00-281-1985 INTERCHANGEABLE
Dry Cleaning Solvent
4940-00-421-5273 INTERCHANGEABLE
Booth,spraying
Cross-Reference Index
Part NumberManufacturer
PS661 PRIMARY Microsemi Corp.-Power Management Group (USA)
X66D8213 Rome Air Development Center (USA)
Related Parts
6850-00-281-1985INTERCHANGEABLE
DRY CLEANING SOLVENT
4940-00-421-5273INTERCHANGEABLE
BOOTH,SPRAYING

Frequently Asked Questions

What is NSN 5945-00-269-3052?

NSN 5945-00-269-3052 is a Relay,electromagnetic, manufactured by Microsemi Corp.-Power Management Group, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-269-3052?

NSN 5945-00-269-3052 has 2 cross-referenced part numbers: PS661 (Microsemi Corp.-Power Management Group), X66D8213 (Rome Air Development Center).

What NSN replaces 5945-00-269-3052?

There are 2 known substitutes for 5945-00-269-3052: 6850-00-281-1985, 4940-00-421-5273. Verify interchangeability with system specifications before substitution.

What are the specifications of PS661?

Key specifications for PS661: Duty Type: CONTINUOUS; Winding Quantity: 1; Winding DC Resistance Rating: 1.44 KILOHMS NOMINAL SINGLE WINDING; Nondefinitive Spec/std Data: X66D8213 REFERENCE NUMBER. 15 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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