PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40DF15AAD4Relay,electromagnetic

Siemens Energy and Automation Inc Siemens Furnas Controls Div · NSN 5945-01-251-7957 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-01-251-7957 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-251-7957. Primary manufacturer part number: 40DF15AAD4.
Features
  • Relay,electromagnetic — FSC 5945
  • Nonpile-Up Main Contact Arrangement: 2 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
  • Purpose for Which Designed: GENERAL
  • Operating Voltage Rating and Type at Specified Temp: 115.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
  • Fragility Factor: MODERATELY RUGGED
  • Winding Quantity: 1
  • Storage Type: GENERAL PURPOSE WAREHOUSE
  • Arc Quenching Method: AIR
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-01-251-7957, 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 Siemens Energy and Automation Inc Siemens Furnas Controls Div. Government technical data includes 10 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-01-251-7957
Primary Part Number40DF15AAD4
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerSiemens Energy and Automation Inc Siemens Furnas Controls Div
StatusACTIVE
Nonpile-Up Main Contact Arrangement2 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Purpose for Which DesignedGENERAL
Operating Voltage Rating and Type at Specified Temp115.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
Fragility FactorMODERATELY RUGGED
Winding Quantity1
Storage TypeGENERAL PURPOSE WAREHOUSE
Arc Quenching MethodAIR
Duty TypeCONTINUOUS
Main Contact Load Current Rating at Maximum Rated Voltage30.0 AMPERES AC RESISTIVE LOAD
Coil Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4320-00-471-139863461 INTERCHANGEABLE
Piston,pump
Parker Hannifin Corporation Div Hydraulic Systems Division
1420-00-945-92216589-6 INTERCHANGEABLE
Cable,module Interc
Thomas and Betts Corp Electronics Group
4310-01-006-9027 INTERCHANGEABLE
Compressor Unit,rotary
7530-01-609-065665896 INTERCHANGEABLE
Envelope,mailing
3 Star Papers Ltd Dba Limited Papers Div Limited Papers
5136-01-727-292065896 INTERCHANGEABLE
Die,thread Cutting
Tapco Cutting Tools Inc
Cross-Reference Index
Part NumberManufacturer
65896 Jsj Corporation Dba Dake Div Dake Div (USA)
40DF15AAD4 PRIMARY Siemens Energy and Automation Inc Siemens Furnas Controls Div (USA)
Related Parts
4320-00-471-1398INTERCHANGEABLE
PISTON,PUMP
63461
1420-00-945-9221INTERCHANGEABLE
CABLE,MODULE INTERC
6589-6
4310-01-006-9027INTERCHANGEABLE
COMPRESSOR UNIT,ROTARY
7530-01-609-0656INTERCHANGEABLE
ENVELOPE,MAILING
65896
5136-01-727-2920INTERCHANGEABLE
DIE,THREAD CUTTING
65896

Frequently Asked Questions

What is NSN 5945-01-251-7957?

NSN 5945-01-251-7957 is a Relay,electromagnetic, manufactured by Siemens Energy and Automation Inc Siemens Furnas Controls Div, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-01-251-7957?

NSN 5945-01-251-7957 has 2 cross-referenced part numbers: 65896 (Jsj Corporation Dba Dake Div Dake Div), 40DF15AAD4 (Siemens Energy and Automation Inc Siemens Furnas Controls Div).

What NSN replaces 5945-01-251-7957?

There are 5 known substitutes for 5945-01-251-7957: 4320-00-471-1398, 1420-00-945-9221, 4310-01-006-9027 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40DF15AAD4?

Key specifications for 40DF15AAD4: Nonpile-Up Main Contact Arrangement: 2 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION; Purpose for Which Designed: GENERAL; Operating Voltage Rating and Type at Specified Temp: 115.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING; Fragility Factor: MODERATELY RUGGED. 10 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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