PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RY4PA3B3L03Relay,electromagnetic

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5945-00-914-0152 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-914-0152 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-914-0152. Primary manufacturer part number: RY4PA3B3L03.
Features
  • Relay,electromagnetic — FSC 5945
  • Storage Type: GENERAL PURPOSE WAREHOUSE
  • Frequency in Hertz: 60.0 NOMINAL
  • Main Contact Load Current Rating at Maximum Rated Voltage: 3.0 AMPERES AC AND 3.0 AMPERES DC INDUCTIVE LOAD
  • Time Delay: 0.05 SECONDS MAXIMUM FIXED RELEASE TIME
  • Nonpile-Up Main Contact Arrangement: 4 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
  • Cubic Measure: 3.783 CUBIC INCHES
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-914-0152, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 26 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
NSN5945-00-914-0152
Primary Part NumberRY4PA3B3L03
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Storage TypeGENERAL PURPOSE WAREHOUSE
Frequency in Hertz60.0 NOMINAL
Main Contact Load Current Rating at Maximum Rated Voltage3.0 AMPERES AC AND 3.0 AMPERES DC INDUCTIVE LOAD
Time Delay0.05 SECONDS MAXIMUM FIXED RELEASE TIME
Nonpile-Up Main Contact Arrangement4 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Cubic Measure3.783 CUBIC INCHES
Fragility FactorMODERATELY RUGGED
Terminal Type and Quantity14 WIRE HOOK ALL FUNCTIONS
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Specification/standard Data81349-MIL-R-5757/15 GOVERNMENT SPECIFICATION
Center to Center Distance Between Mounting Facilities Parallel to Width0.687 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Mounting Facility Type and Quantity4 THREADED STUD(S) SINGLE MOUNTING FACILITY
Center to Center Distance Between Mounting Facilities Parallel to Length1.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Main Contact Load Current Rating at Maximum Rated Voltage800.0 MILLIAMPERES AC AND 800.0 MILLIAMPERES DC LAMP LOAD
Thread DirectionRIGHT-HAND SINGLE MOUNTING FACILITY
Winding DC Resistance Rating1.4 KILOHMS NOMINAL SINGLE WINDING
Main Contact Maximum Voltage Rating in Volts115.0 AC AND 28.0 DC
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Mounting Facility PatternRECTANGULAR SINGLE MOUNTING FACILITY
Winding Quantity1
Duty TypeCONTINUOUS
Thread Class2A SINGLE MOUNTING FACILITY A
Coil Quantity1
Purpose for Which DesignedGENERAL
Main Contact Load Current Rating at Maximum Rated Voltage5.0 AMPERES AC AND 5.0 AMPERES DC RESISTIVE LOAD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6625-00-080-0070 INTERCHANGEABLE
Ammeter
5325-00-329-2577 INTERCHANGEABLE
Ring,retaining
5935-00-502-49584-10-71 INTERCHANGEABLE
Connector,plug,electrical
Ted Manufacturing Corp Div Ted Manufacturing Corporation
5945-00-818-8904 INTERCHANGEABLE
Relay,electromagnetic
5945-00-829-2825 INTERCHANGEABLE
Relay,electromagnetic
5950-00-926-3162677-0342-320 INTERCHANGEABLE
Transformer,audio Frequency
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
1680-01-022-9856 INTERCHANGEABLE
Link,subassy
3950-01-045-503141069 INTERCHANGEABLE
Cylinder Assembly
Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division
5962-01-178-43606134579-1 INTERCHANGEABLE
Microcircuit,hybrid
Lockheed Martin Corporation Div Rotary and Mission Systems
3120-01-222-4071 INTERCHANGEABLE
Bushing,sleeve
Cross-Reference Index
Part NumberManufacturer
RY4PA3B3L03 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5945PL1384975 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MIL-R-5757/15 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M5757/15-005 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4170600-63 Raytheon Company Div Rmd Strategic (USA)
4106-9 Wing Corp (USA)
4107-1 Wing Corp (USA)
Related Parts
6625-00-080-0070INTERCHANGEABLE
AMMETER
5325-00-329-2577INTERCHANGEABLE
RING,RETAINING
5935-00-502-4958INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
4-10-71
5945-00-818-8904INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-00-829-2825INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5950-00-926-3162INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
677-0342-320
1680-01-022-9856INTERCHANGEABLE
LINK,SUBASSY
3950-01-045-5031INTERCHANGEABLE
CYLINDER ASSEMBLY
41069
5962-01-178-4360INTERCHANGEABLE
MICROCIRCUIT,HYBRID
6134579-1
3120-01-222-4071INTERCHANGEABLE
BUSHING,SLEEVE
2530-01-485-3192INTERCHANGEABLE
RIM,WHEEL,PNEUMATIC TIRE
41069
6035-01-544-8400INTERCHANGEABLE
ILLUMINATOR,FIBER OPTIC

Frequently Asked Questions

What is NSN 5945-00-914-0152?

NSN 5945-00-914-0152 is a Relay,electromagnetic, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-914-0152?

NSN 5945-00-914-0152 has 7 cross-referenced part numbers: RY4PA3B3L03 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 5945PL1384975 (Jednolity Indeks Materialowy - Uniform Material Index), MIL-R-5757/15 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M5757/15-005 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 4170600-63 (Raytheon Company Div Rmd Strategic) and 2 more.

What NSN replaces 5945-00-914-0152?

There are 12 known substitutes for 5945-00-914-0152: 6625-00-080-0070, 5325-00-329-2577, 5935-00-502-4958 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RY4PA3B3L03?

Key specifications for RY4PA3B3L03: Storage Type: GENERAL PURPOSE WAREHOUSE; Frequency in Hertz: 60.0 NOMINAL; Main Contact Load Current Rating at Maximum Rated Voltage: 3.0 AMPERES AC AND 3.0 AMPERES DC INDUCTIVE LOAD; Overall Height: 2.187 INCHES MAXIMUM IN. 30 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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