PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

405243Relay,electromagnetic

Aimtron Systems, Llc · NSN 5945-01-141-1969 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-01-141-1969 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-141-1969. Primary manufacturer part number: 405243.
Features
  • Relay,electromagnetic — FSC 5945
  • Terminal Type and Quantity: 10 WIRE HOOK ALL FUNCTIONS
  • Duty Type: CONTINUOUS
  • Coil Quantity: 2
  • Thread Class: 2A SINGLE MOUNTING FACILITY A
  • Main Contact Maximum Voltage Rating in Volts: 115.0 AC AND 30.0 DC
  • Nominal Thread Size: 0.138 INCHES SINGLE MOUNTING FACILITY IN
  • Winding DC Resistance Rating: 1.0 KILOHMS NOMINAL ALL WINDINGS
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-01-141-1969, 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 Aimtron Systems, Llc. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-01-141-1969
Primary Part Number405243
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerAimtron Systems, Llc
StatusACTIVE
Terminal Type and Quantity10 WIRE HOOK ALL FUNCTIONS
Duty TypeCONTINUOUS
Coil Quantity2
Thread Class2A SINGLE MOUNTING FACILITY A
Main Contact Maximum Voltage Rating in Volts115.0 AC AND 30.0 DC
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Winding DC Resistance Rating1.0 KILOHMS NOMINAL ALL WINDINGS
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Operating Voltage Rating and Type at Specified Temp26.5 VOLTS DC 25 DEG CELSIUS ALL WINDINGS
Center to Center Distance Between Mounting Facilities Parallel to Length0.412 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Winding Quantity2
Environmental ProtectionHERMETIC AND VIBRATION RESISTANT
Nonpile-Up Main Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Main Contact Load Current Rating at Maximum Rated Voltage1.0 AMPERES AC AND 2.0 AMPERES DC RESISTIVE LOAD
Thread DirectionRIGHT-HAND SINGLE MOUNTING FACILITY
Cubic Measure0.300 CUBIC INCHES
Features ProvidedLATCHING CONTACTS AND POLARIZED
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Mounting Facility Type and Quantity2 THREADED STUD(S) SINGLE MOUNTING FACILITY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Time Delay0.004 SECONDS MAXIMUM FIXED OPERATE AND RELEASE TIME
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5999-00-131-669446-54 INTERCHANGEABLE
Delay Line
Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil
5331-00-137-9684 INTERCHANGEABLE
O-Ring
2520-00-164-2170201065 INTERCHANGEABLE
Gear,countershaft
Clark Material Handling Company
5330-00-242-52374654 INTERCHANGEABLE
Seal
Mag Aerospace Industries, Llc Div Safran Cabins
5330-00-522-0637 INTERCHANGEABLE
Retainer,packing
3110-00-554-3232204S INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
5905-00-804-814210050157-2 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Us Army Aviation and Missile Command
5940-00-822-25844654 INTERCHANGEABLE
Terminal Lug,swing
Electro Scientific Industries Inc
6135-00-826-4798E92 INTERCHANGEABLE
Battery,nonrechargeable
Eveready Battery Co Inc
5330-00-866-4401M4654 INTERCHANGEABLE
Gasket
Met-Pro Corporation
Cross-Reference Index
Part NumberManufacturer
2KL1D126 Hi-G Co Inc Sub of Nytronics Inc (USA)
LS-8911 Te Connectivity Corporation (USA)
4654 Te Connectivity Corporation (USA)
LS-8911 Te Connectivity Corporation (USA)
405243 Cardion Inc (USA)
4654 Te Connectivity Corporation (USA)
405243 PRIMARY Aimtron Systems, Llc (USA)
Related Parts
5999-00-131-6694INTERCHANGEABLE
DELAY LINE
46-54
5331-00-137-9684INTERCHANGEABLE
O-RING
2520-00-164-2170INTERCHANGEABLE
GEAR,COUNTERSHAFT
201065
5330-00-242-5237INTERCHANGEABLE
SEAL
4654
5330-00-522-0637INTERCHANGEABLE
RETAINER,PACKING
3110-00-554-3232INTERCHANGEABLE
BEARING,BALL,ANNULAR
204S
5905-00-804-8142INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
10050157-2
5940-00-822-2584INTERCHANGEABLE
TERMINAL LUG,SWING
4654
6135-00-826-4798INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
E92
5330-00-866-4401INTERCHANGEABLE
GASKET
M4654
5930-00-984-9883INTERCHANGEABLE
SWITCH,TOGGLE
4820-01-314-1181INTERCHANGEABLE
GUIDE,VALVE STEM
4654-2HG

Frequently Asked Questions

What is NSN 5945-01-141-1969?

NSN 5945-01-141-1969 is a Relay,electromagnetic, manufactured by Aimtron Systems, Llc, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-01-141-1969?

NSN 5945-01-141-1969 has 7 cross-referenced part numbers: 2KL1D126 (Hi-G Co Inc Sub of Nytronics Inc), LS-8911 (Te Connectivity Corporation), 4654 (Te Connectivity Corporation), LS-8911 (Te Connectivity Corporation), 405243 (Cardion Inc) and 2 more.

What NSN replaces 5945-01-141-1969?

There are 12 known substitutes for 5945-01-141-1969: 5999-00-131-6694, 5331-00-137-9684, 2520-00-164-2170 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 405243?

Key specifications for 405243: Terminal Type and Quantity: 10 WIRE HOOK ALL FUNCTIONS; Duty Type: CONTINUOUS; Coil Quantity: 2; Thread Class: 2A SINGLE MOUNTING FACILITY A. 24 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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