PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

300251Relay,electromagnetic

Seeburg Corp the Seeburg Products Div · NSN 5945-00-587-4954 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-587-4954 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-587-4954. Primary manufacturer part number: 300251.
Features
  • Relay,electromagnetic — FSC 5945
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
  • Main Contact Load Current Rating at Maximum Rated Voltage: 100.0 MILLIAMPERES DC RESISTIVE LOAD
  • Thread Class: 2B SINGLE MOUNTING FACILITY
  • Nominal Operating Current Rating and Type: 80.0 MILLIAMPERES DC SINGLE WINDING
  • Winding DC Resistance Rating: 775.0 OHMS NOMINAL SINGLE WINDING
  • Coil Quantity: 1
  • Main Contact Maximum Voltage Rating in Volts: 80.0 DC
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-587-4954, 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 Seeburg Corp the Seeburg Products Div. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5945-00-587-4954
Primary Part Number300251
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerSeeburg Corp the Seeburg Products Div
StatusACTIVE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Main Contact Load Current Rating at Maximum Rated Voltage100.0 MILLIAMPERES DC RESISTIVE LOAD
Thread Class2B SINGLE MOUNTING FACILITY
Nominal Operating Current Rating and Type80.0 MILLIAMPERES DC SINGLE WINDING
Winding DC Resistance Rating775.0 OHMS NOMINAL SINGLE WINDING
Coil Quantity1
Main Contact Maximum Voltage Rating in Volts80.0 DC
Pile-Up Main Contact Form Arrangement2A A
Winding Quantity1
Time Delay0.04 SECONDS NOMINAL FIXED OPERATE TIME
Features ProvidedPOLARIZED
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Mounting Facility Type and Quantity2 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Time Delay0.004 SECONDS NOMINAL FIXED RELEASE TIME
Center to Center Distance Between Mounting Facilities Parallel to Length0.562 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Duty TypeINTERMITTENT
Terminal Type and Quantity6 PIN ALL FUNCTIONS
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Operating Voltage Rating and Type at Specified Temp60.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5940-00-941-046010-709-3-01 INTERCHANGEABLE
Terminal,stud
Concord Electronics, Inc.
5330-01-206-3169300251 INTERCHANGEABLE
Seal,plain Encased
Curtis Machine Company, Inc.
Cross-Reference Index
Part NumberManufacturer
300251 Seeburg Corp the Seeburg Products Div (USA)
Related Parts
5940-00-941-0460INTERCHANGEABLE
TERMINAL,STUD
10-709-3-01
5330-01-206-3169INTERCHANGEABLE
SEAL,PLAIN ENCASED
300251

Frequently Asked Questions

What is NSN 5945-00-587-4954?

NSN 5945-00-587-4954 is a Relay,electromagnetic, manufactured by Seeburg Corp the Seeburg Products Div, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-587-4954?

NSN 5945-00-587-4954 has 1 cross-referenced part number: 300251 (Seeburg Corp the Seeburg Products Div).

What NSN replaces 5945-00-587-4954?

There are 2 known substitutes for 5945-00-587-4954: 5940-00-941-0460, 5330-01-206-3169. Verify interchangeability with system specifications before substitution.

What are the specifications of 300251?

Key specifications for 300251: Overall Width: 1.250 INCHES NOMINAL IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY; Main Contact Load Current Rating at Maximum Rated Voltage: 100.0 MILLIAMPERES DC RESISTIVE LOAD; Thread Class: 2B SINGLE MOUNTING FACILITY. 22 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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