PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

194HE2C+22005Relay,reed

Sigma Instruments Inc · NSN 5945-00-189-2925 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-189-2925 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-189-2925. Primary manufacturer part number: 194HE2C+22005.
Features
  • Relay,reed — FSC 5945
  • Main Contact Load Current Rating at Maximum Rated Voltage: 500.0 MILLIAMPERES DC RESISTIVE LOAD
  • Terminal Type and Quantity: 1 PIN GROUND
  • Specification/standard Data: 81349-MIL-R-5757/29 GOVERNMENT SPECIFICATION
  • 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.).
  • Storage Type: GENERAL PURPOSE WAREHOUSE
  • Winding DC Resistance Rating: 832.5 OHMS MINIMUM AND 1.0 KILOHMS MAXIMUM SINGLE WINDING
  • Operating Voltage Rating and Type at Specified Temp: 26.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,reed, cataloged under National Stock Number 5945-00-189-2925, 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 6 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
NSN5945-00-189-2925
Primary Part Number194HE2C+22005
Item NameRelay,reed
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerSigma Instruments Inc
StatusACTIVE
Main Contact Load Current Rating at Maximum Rated Voltage500.0 MILLIAMPERES DC RESISTIVE LOAD
Terminal Type and Quantity1 PIN GROUND
Specification/standard Data81349-MIL-R-5757/29 GOVERNMENT SPECIFICATION
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.).
Storage TypeGENERAL PURPOSE WAREHOUSE
Winding DC Resistance Rating832.5 OHMS MINIMUM AND 1.0 KILOHMS MAXIMUM SINGLE WINDING
Operating Voltage Rating and Type at Specified Temp26.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Main Contact Maximum Voltage Rating in Volts28.0 DC
Coil Quantity1
Mounting Facility Type and Quantity1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
Fragility FactorMODERATELY RUGGED
Environmental ProtectionDUSTPROOF
Winding Quantity1
Duty TypeCONTINUOUS
Cubic Measure0.619 CUBIC INCHES
Purpose for Which DesignedGENERAL
Nonpile-Up Main Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Terminal Type and Quantity8 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
5945-00-088-5426 INTERCHANGEABLE
Relay,reed
5945-00-133-0499 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
194HE2C+22005 Sigma Instruments Inc (USA)
339295-005 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
MIL-R-5757/29 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5945PL2155086 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MIL-DTL-5757/29 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M5757/29-005 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
5945-00-088-5426INTERCHANGEABLE
RELAY,REED
5945-00-133-0499INTERCHANGEABLE
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 5945-00-189-2925?

NSN 5945-00-189-2925 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 5945-00-189-2925?

NSN 5945-00-189-2925 has 6 cross-referenced part numbers: 194HE2C+22005 (Sigma Instruments Inc), 339295-005 (Lockheed Martin Corporation Div Rms - Mitchel Field), MIL-R-5757/29 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 5945PL2155086 (Jednolity Indeks Materialowy - Uniform Material Index), MIL-DTL-5757/29 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 5945-00-189-2925?

There are 12 known substitutes for 5945-00-189-2925: 5945-00-025-7232, 5945-00-088-5425, 5945-00-088-5426 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 194HE2C+22005?

Key specifications for 194HE2C+22005: Main Contact Load Current Rating at Maximum Rated Voltage: 500.0 MILLIAMPERES DC RESISTIVE LOAD; Overall Width: 0.700 INCHES NOMINAL IN; Terminal Type and Quantity: 1 PIN GROUND; Specification/standard Data: 81349-MIL-R-5757/29 GOVERNMENT SPECIFICATION. 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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