PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

194HE4A0200Relay,reed

Sigma Instruments Inc · NSN 5945-00-088-5426 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-088-5426 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-088-5426. Primary manufacturer part number: 194HE4A0200.
Features
  • Relay,reed — FSC 5945
  • Terminal Type and Quantity: 1 PIN GROUND
  • Mounting Facility Type and Quantity: 1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
  • Main Contact Maximum Voltage Rating in Volts: 28.0 DC
  • Test Data Document: 81349-MIL-R-5757 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Purpose for Which Designed: GENERAL
  • Fragility Factor: MODERATELY RUGGED
  • Storage Type: GENERAL PURPOSE WAREHOUSE
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,reed, cataloged under National Stock Number 5945-00-088-5426, 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 Sigma Instruments Inc. Government technical data includes 18 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
NSN5945-00-088-5426
Primary Part Number194HE4A0200
Item NameRelay,reed
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerSigma Instruments Inc
StatusACTIVE
Terminal Type and Quantity1 PIN GROUND
Mounting Facility Type and Quantity1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
Main Contact Maximum Voltage Rating in Volts28.0 DC
Test Data Document81349-MIL-R-5757 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Purpose for Which DesignedGENERAL
Fragility FactorMODERATELY RUGGED
Storage TypeGENERAL PURPOSE WAREHOUSE
Cubic Measure0.802 CUBIC INCHES
Operating Voltage Rating and Type at Specified Temp12.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Specification/standard Data81349-MIL-R-5757/29 GOVERNMENT SPECIFICATION
Winding DC Resistance Rating100.0 OHMS NOMINAL SINGLE WINDING
Environmental ProtectionDUSTPROOF
Coil Quantity1
Main Contact Load Current Rating at Maximum Rated Voltage500.0 MILLIAMPERES DC RESISTIVE LOAD
Nonpile-Up Main Contact Arrangement4 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Duty TypeCONTINUOUS
Winding Quantity1
Terminal Type and Quantity10 PIN ENERGIZING ELEMENT AND CONTACTS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5945-00-025-7232 INTERCHANGEABLE
Relay,reed
5945-00-088-5425 INTERCHANGEABLE
Relay,reed
5945-00-133-0499 INTERCHANGEABLE
Relay,reed
5945-00-189-2925 INTERCHANGEABLE
Relay,reed
5945-00-414-3283 INTERCHANGEABLE
Relay,reed
5945-00-483-0181 INTERCHANGEABLE
Relay,reed
5945-00-490-3696 INTERCHANGEABLE
Relay,reed
5945-01-013-5213 INTERCHANGEABLE
Relay,reed
5945-01-013-5214 INTERCHANGEABLE
Relay,reed
5945-01-014-6741 INTERCHANGEABLE
Relay,reed
Cross-Reference Index
Part NumberManufacturer
194HE4A0200 Sigma Instruments Inc (USA)
M5757/29-024 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-R-5757/29 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
401647-23 Aimtron Systems, Llc (USA)
401647-24 Aimtron Systems, Llc (USA)
401647-24 Raytheon Company Dba Raytheon (USA)
MIL-DTL-5757/29 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5945-00-025-7232INTERCHANGEABLE
RELAY,REED
5945-00-088-5425INTERCHANGEABLE
RELAY,REED
5945-00-133-0499INTERCHANGEABLE
RELAY,REED
5945-00-189-2925INTERCHANGEABLE
RELAY,REED
5945-00-414-3283INTERCHANGEABLE
RELAY,REED
5945-00-483-0181INTERCHANGEABLE
RELAY,REED
5945-00-490-3696INTERCHANGEABLE
RELAY,REED
5945-01-013-5213INTERCHANGEABLE
RELAY,REED
5945-01-013-5214INTERCHANGEABLE
RELAY,REED
5945-01-014-6741INTERCHANGEABLE
RELAY,REED
5945-01-037-7721INTERCHANGEABLE
RELAY,REED
5945-01-110-1928INTERCHANGEABLE
RELAY,REED

Frequently Asked Questions

What is NSN 5945-00-088-5426?

NSN 5945-00-088-5426 is a Relay,reed, manufactured by Sigma Instruments Inc, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-088-5426?

NSN 5945-00-088-5426 has 7 cross-referenced part numbers: 194HE4A0200 (Sigma Instruments Inc), M5757/29-024 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-R-5757/29 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 401647-23 (Aimtron Systems, Llc), 401647-24 (Aimtron Systems, Llc) and 2 more.

What NSN replaces 5945-00-088-5426?

There are 12 known substitutes for 5945-00-088-5426: 5945-00-025-7232, 5945-00-088-5425, 5945-00-133-0499 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 194HE4A0200?

Key specifications for 194HE4A0200: Overall Length: 1.290 INCHES NOMINAL IN; Terminal Type and Quantity: 1 PIN GROUND; Mounting Facility Type and Quantity: 1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY; Main Contact Maximum Voltage Rating in Volts: 28.0 DC. 21 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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