PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

68B40028Relay,electromagnetic

Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss) · NSN 5945-00-583-8819 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-583-8819 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-583-8819. Primary manufacturer part number: 68B40028.
Features
  • Relay,electromagnetic — FSC 5945
  • Environmental Protection: HERMETIC
  • Winding Quantity: 1
  • Main Contact Maximum Voltage Rating in Volts: 28.0 DC
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.060 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Coil Quantity: 1
  • Thread Class: 2A SINGLE MOUNTING FACILITY A
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-583-8819, 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 Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss). Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5945-00-583-8819
Primary Part Number68B40028
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerAir Force Lifecycle Management Center Electronic Components (aflcmc/ezss)
StatusCANCELLED
Environmental ProtectionHERMETIC
Winding Quantity1
Main Contact Maximum Voltage Rating in Volts28.0 DC
Center to Center Distance Between Mounting Facilities Parallel to Length1.060 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Coil Quantity1
Thread Class2A SINGLE MOUNTING FACILITY A
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Winding DC Resistance Rating500.0 OHMS NOMINAL SINGLE WINDING
Operating Voltage Rating and Type at Specified Temp28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Main Contact Load Current Rating at Maximum Rated Voltage1.5 AMPERES DC RESISTIVE LOAD
Center to Center Distance Between Mounting Facilities Parallel to Width0.380 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Terminal Type and Quantity5 PIN ALL FUNCTIONS
Duty TypeCONTINUOUS
Nominal Thread Size0.112 INCHES SINGLE MOUNTING FACILITY IN
Nonpile-Up Main Contact Arrangement1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Mounting Facility Type and Quantity2 THREADED STUD(S) SINGLE MOUNTING FACILITY
Mounting Facility PatternDIAGONAL SINGLE MOUNTING FACILITY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
4720-00-030-6381569-022-159-859-06 UL92 HOSE INTERCHANGEABLE
Hose Assembly,nonmetallic
Contitech Usa, Inc Dba Veyance Technologies
5840-00-369-658510206 INTERCHANGEABLE
Mounting Control Un
Naval Ship Systems Command
6680-00-514-56677083-00006 INTERCHANGEABLE
Gage,liquid Quantity,float Type
Rochester Sensors, Llc
5999-01-014-04147083 INTERCHANGEABLE
Contact,electrical
Asco Power Services Inc Dba Asco Emergency Power Maintenance Incorporated
9340-01-018-907516102 INTERCHANGEABLE
Mirror,glass
Grote Industries Inc Dba Grote Manufacturing Co Div Military Products
5995-01-026-9302132494-2 INTERCHANGEABLE
Cable Assembly
L3harris Technologies, Inc Div Space & Airborne Systems
5925-01-645-8716 INTERCHANGEABLE
Circuit Breaker
Cross-Reference Index
Part NumberManufacturer
C8720-12K Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft) (USA)
50129C100 Freund Precision Inc (USA)
H8725-1K1 Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft) (USA)
8868598 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
68B40028 PRIMARY Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss) (USA)
51S1027 Kurman Relays Inc (USA)
7083 Edo Artisan Inc (USA)
459791-2 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
51S-1027 Omntec Manufacturing Inc (USA)
Related Parts
4720-00-030-6381INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
569-022-159-859-06 UL92 HOSE
5840-00-369-6585INTERCHANGEABLE
MOUNTING CONTROL UN
10206
6680-00-514-5667INTERCHANGEABLE
GAGE,LIQUID QUANTITY,FLOAT TYPE
7083-00006
5999-01-014-0414INTERCHANGEABLE
CONTACT,ELECTRICAL
7083
9340-01-018-9075INTERCHANGEABLE
MIRROR,GLASS
16102
5995-01-026-9302INTERCHANGEABLE
CABLE ASSEMBLY
132494-2
5925-01-645-8716INTERCHANGEABLE
CIRCUIT BREAKER

Frequently Asked Questions

What is NSN 5945-00-583-8819?

NSN 5945-00-583-8819 is a Relay,electromagnetic, manufactured by Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss), classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-583-8819?

NSN 5945-00-583-8819 has 9 cross-referenced part numbers: C8720-12K (Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft)), 50129C100 (Freund Precision Inc), H8725-1K1 (Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft)), 8868598 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), 68B40028 (Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss)) and 4 more.

What NSN replaces 5945-00-583-8819?

There are 7 known substitutes for 5945-00-583-8819: 4720-00-030-6381, 5840-00-369-6585, 6680-00-514-5667 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 68B40028?

Key specifications for 68B40028: Environmental Protection: HERMETIC; Winding Quantity: 1; Overall Height: 0.750 INCHES NOMINAL IN; Overall Length: 1.750 INCHES NOMINAL IN. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-583-8819 still in active supply?

NSN 5945-00-583-8819 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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