PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C503000085Relay,electromagnetic

Kearfott Corporation Div Guidance and Navigation Division · NSN 5945-00-811-0670 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-811-0670 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-811-0670. Primary manufacturer part number: C503000085.
Features
  • Relay,electromagnetic — FSC 5945
  • Features Provided: POLARIZED
  • Environmental Protection: HERMETIC
  • Operating Voltage Rating and Type at Specified Temp: 26.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
  • Main Contact Maximum Voltage Rating in Volts: 115.0 AC AND 29.0 DC
  • Winding DC Resistance Rating: 220.0 OHMS NOMINAL SINGLE WINDING
  • Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Duty Type: CONTINUOUS
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-811-0670, 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 Kearfott Corporation Div Guidance and Navigation Division. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 16 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5945-00-811-0670
Primary Part NumberC503000085
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerKearfott Corporation Div Guidance and Navigation Division
StatusCANCELLED
Features ProvidedPOLARIZED
Environmental ProtectionHERMETIC
Operating Voltage Rating and Type at Specified Temp26.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Main Contact Maximum Voltage Rating in Volts115.0 AC AND 29.0 DC
Winding DC Resistance Rating220.0 OHMS NOMINAL SINGLE WINDING
Mounting Facility Type and Quantity2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Duty TypeCONTINUOUS
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Center to Center Distance Between Mounting Facilities Parallel to Length1.562 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Coil Quantity1
Nominal Operating Current Rating and Type132.0 MILLIAMPERES DC SINGLE WINDING
Main Contact Load Current Rating at Maximum Rated Voltage1.0 AMPERES AC AND 1.0 AMPERES DC RESISTIVE LOAD
Unthreaded Mounting Hole Diameter0.144 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Terminal Type and Quantity20 PIN ALL FUNCTIONS
Nonpile-Up Main Contact Arrangement6 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Winding Quantity1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5305-00-010-0138100138 INTERCHANGEABLE
Screw,cap,hexagon Head
Rolls-Royce Solutions America Inc
5930-00-660-6501KX4-1-2 INTERCHANGEABLE
Switch,sensitive
Sensata Technologies, Inc. Div Sensata Attleboro
6150-01-088-733612085-1 INTERCHANGEABLE
Cable Assembly,power,electrical
Rochester Corp the Environcon Connectors Div
5998-01-203-7298100138 INTERCHANGEABLE
Circuit Card Assembly
Barcoview, Llc Div N/a
5996-01-219-3435100140 INTERCHANGEABLE
Amplifier,radio Frequency
Calorie Counter Ltd Partnership Dba Cal Count
6670-01-377-2569100138 INTERCHANGEABLE
Scale,weighing
Intercomp Co
4820-01-715-9164003421 INTERCHANGEABLE
Valve,bleeder,hydraulic System
Aero Specialties Inc Div Sales
4320-01-723-2109100138 INTERCHANGEABLE
Pump Unit,centrifugal
Waterax Corporation
Cross-Reference Index
Part NumberManufacturer
003421 Moog Inc Div Moog Inc., Space and Defense - Salt Lake City (USA)
FC-6-271B Struthers-Dunn Inc (USA)
MHJU0-18D28VDC Allied Controls, Inc. (USA)
MHJU0-18D26-5VDC Allied Controls, Inc. (USA)
2226768 L3harris Technologies, Inc. (USA)
C503000085 PRIMARY Kearfott Corporation Div Guidance and Navigation Division (USA)
520M12P Airpax Corporation Llc Dba Airpax Corporation Llc (USA)
FC6-271 Struthers-Dunn Inc (USA)
MHU0-18D-26.5YDC Allied Controls, Inc. (USA)
68402001402 Elbitamerica, Inc. (USA)
MHJX6154 Allied Controls, Inc. (USA)
MARKIITYPE2001 Electro-Tec Corp Dba Moog Inc., Components Group (USA)
1001-38 Electro-Tec Corp Dba Moog Inc., Components Group (USA)
03A911ZC1-0159 Te Connectivity Corporation (USA)
03A911ZC1-0159 Te Connectivity Corporation (USA)
12085-1 Kaiser Aerospace and Electronics Corp Phoenix Electronics Plant (USA)
Related Parts
5305-00-010-0138INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
100138
5930-00-660-6501INTERCHANGEABLE
SWITCH,SENSITIVE
KX4-1-2
6150-01-088-7336INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
12085-1
5998-01-203-7298INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
100138
5996-01-219-3435INTERCHANGEABLE
AMPLIFIER,RADIO FREQUENCY
100140
6670-01-377-2569INTERCHANGEABLE
SCALE,WEIGHING
100138
4820-01-715-9164INTERCHANGEABLE
VALVE,BLEEDER,HYDRAULIC SYSTEM
003421
4320-01-723-2109INTERCHANGEABLE
PUMP UNIT,CENTRIFUGAL
100138

Frequently Asked Questions

What is NSN 5945-00-811-0670?

NSN 5945-00-811-0670 is a Relay,electromagnetic, manufactured by Kearfott Corporation Div Guidance and Navigation Division, classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-811-0670?

NSN 5945-00-811-0670 has 16 cross-referenced part numbers: 003421 (Moog Inc Div Moog Inc., Space and Defense - Salt Lake City), FC-6-271B (Struthers-Dunn Inc), MHJU0-18D28VDC (Allied Controls, Inc.), MHJU0-18D26-5VDC (Allied Controls, Inc.), 2226768 (L3harris Technologies, Inc.) and 11 more.

What NSN replaces 5945-00-811-0670?

There are 8 known substitutes for 5945-00-811-0670: 5305-00-010-0138, 5930-00-660-6501, 6150-01-088-7336 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C503000085?

Key specifications for C503000085: Features Provided: POLARIZED; Environmental Protection: HERMETIC; Overall Width: 1.813 INCHES NOMINAL IN; Operating Voltage Rating and Type at Specified Temp: 26.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-811-0670 still in active supply?

NSN 5945-00-811-0670 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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