PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

634-3712Relay,electromagnetic

Leach International Corp Div Leach International Corporation · NSN 5945-00-556-6596 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-556-6596 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-556-6596. Primary manufacturer part number: 634-3712.
Features
  • Relay,electromagnetic — FSC 5945
  • Duty Type: CONTINUOUS
  • Environmental Protection: HERMETIC
  • Main Contact Load Current Rating at Maximum Rated Voltage: 8.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD
  • Terminal Type and Quantity: 8 PIN ALL FUNCTIONS
  • Features Provided: POLARIZED
  • Pile-Up Main Contact Form Arrangement: 1A1B1A
  • Mounting Facility Type and Quantity: 1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-556-6596, 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 Leach International Corp Div Leach International Corporation. Government technical data includes 14 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-556-6596
Primary Part Number634-3712
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerLeach International Corp Div Leach International Corporation
StatusACTIVE
Duty TypeCONTINUOUS
Environmental ProtectionHERMETIC
Main Contact Load Current Rating at Maximum Rated Voltage8.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD
Terminal Type and Quantity8 PIN ALL FUNCTIONS
Features ProvidedPOLARIZED
Pile-Up Main Contact Form Arrangement1A1B1A
Mounting Facility Type and Quantity1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
Main Contact Maximum Voltage Rating in Volts115.0 AC AND 28.0 DC
Overall Diameter1.781 INCHES NOMINAL IN
Winding Quantity1
Nominal Operating Current Rating and Type150.0 MILLIAMPERES DC SINGLE WINDING
Coil Quantity1
Operating Voltage Rating and Type at Specified Temp24.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Winding DC Resistance Rating193.0 OHMS NOMINAL SINGLE WINDING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5940-00-143-4794MS25036-112 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
3110-00-188-2712 INTERCHANGEABLE
Bearing,ball,annular
5930-00-247-4947148027QDH1C INTERCHANGEABLE
Switch,rotary
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
3030-01-039-5489322XL037 INTERCHANGEABLE
Belt,positive Drive
Gates Corporation
Cross-Reference Index
Part NumberManufacturer
634-3712 Leach International Corp Div Leach International Corporation (USA)
36161 Valley Power Systems, Inc. (USA)
Related Parts
5940-00-143-4794INTERCHANGEABLE
TERMINAL,LUG
MS25036-112
3110-00-188-2712INTERCHANGEABLE
BEARING,BALL,ANNULAR
5930-00-247-4947INTERCHANGEABLE
SWITCH,ROTARY
148027QDH1C
3030-01-039-5489INTERCHANGEABLE
BELT,POSITIVE DRIVE
322XL037

Frequently Asked Questions

What is NSN 5945-00-556-6596?

NSN 5945-00-556-6596 is a Relay,electromagnetic, manufactured by Leach International Corp Div Leach International Corporation, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-556-6596?

NSN 5945-00-556-6596 has 2 cross-referenced part numbers: 634-3712 (Leach International Corp Div Leach International Corporation), 36161 (Valley Power Systems, Inc.).

What NSN replaces 5945-00-556-6596?

There are 4 known substitutes for 5945-00-556-6596: 5940-00-143-4794, 3110-00-188-2712, 5930-00-247-4947 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 634-3712?

Key specifications for 634-3712: Duty Type: CONTINUOUS; Environmental Protection: HERMETIC; Main Contact Load Current Rating at Maximum Rated Voltage: 8.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD; Terminal Type and Quantity: 8 PIN ALL FUNCTIONS. 15 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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