PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

JA-J2F-003Relay,electromagnetic

Leach International Corp Div Leach International Corporation · NSN 5945-01-666-8973 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-01-666-8973 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-666-8973. Primary manufacturer part number: JA-J2F-003.
Features
  • Relay,electromagnetic — FSC 5945
  • Failure Rate Suffix Letter: L
  • Frequency in Hertz: 400.0 NOMINAL
  • Nonpile-Up Main Contact Arrangement: 2 POLE, DOUBLE THROW, BOTH POSITIONS MAINTAINED
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.396 INCHES MINIMUM AND 1.446 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN
  • Auxiliary Contact Load Current Rating at Maximum Rated Voltage: 8.0 AMPERES AC INDUCTIVE LOAD
  • Auxiliary Contact Load Current Rating at Maximum Rated Voltage: 4.0 AMPERES AC MOTOR LOAD
  • Coil Quantity: 1
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-01-666-8973, 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 11 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: Cancelled.

Technical Specifications
ParameterValue
NSN5945-01-666-8973
Primary Part NumberJA-J2F-003
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerLeach International Corp Div Leach International Corporation
StatusCANCELLED
Failure Rate Suffix LetterL
Frequency in Hertz400.0 NOMINAL
Nonpile-Up Main Contact Arrangement2 POLE, DOUBLE THROW, BOTH POSITIONS MAINTAINED
Center to Center Distance Between Mounting Facilities Parallel to Length1.396 INCHES MINIMUM AND 1.446 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN
Auxiliary Contact Load Current Rating at Maximum Rated Voltage8.0 AMPERES AC INDUCTIVE LOAD
Auxiliary Contact Load Current Rating at Maximum Rated Voltage4.0 AMPERES AC MOTOR LOAD
Coil Quantity1
Duty TypeCONTINUOUS
Mounting Facility Type and Quantity2 BRACKET(S) SINGLE MOUNTING FACILITY
Auxiliary Contact Load Current Rating at Maximum Rated Voltage2.0 AMPERES AC LAMP LOAD
Environmental ProtectionHERMETIC
Main Contact Maximum Voltage Rating in Volts122.0 AC
Auxiliary Contact Load Current Rating at Maximum Rated Voltage10.0 AMPERES AC RESISTIVE LOAD
Terminal Type and Quantity8 WIRE HOOK ALL FUNCTIONS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5945-01-129-7628 INTERCHANGEABLE
Relay,electromagnetic
5945-01-248-1898 INTERCHANGEABLE
Relay,electromagnetic
5945-01-287-6657 INTERCHANGEABLE
Relay,electromagnetic
5945-01-294-7572 INTERCHANGEABLE
Relay,electromagnetic
5945-01-308-2060 INTERCHANGEABLE
Relay,electromagnetic
5945-01-406-2899 INTERCHANGEABLE
Relay,electromagnetic
5945-01-410-8745 INTERCHANGEABLE
Relay,electromagnetic
5945-01-416-4187 INTERCHANGEABLE
Relay,electromagnetic
5945-01-470-8521 INTERCHANGEABLE
Relay,electromagnetic
5945-01-478-5203 INTERCHANGEABLE
Relay,electromagnetic
Cross-Reference Index
Part NumberManufacturer
JA-J2F-003 Leach International Corp Div Leach International Corporation (USA)
PL405815-01-01 FN K2 Bae Systems Controls Inc. (USA)
M83536/11-008L Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS27401-22M Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-83536 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-R-83536/11 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-6106 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M8356/11-008 M Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-83536/11 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M83536/11-008M Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-R-6106 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5945-01-129-7628INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-248-1898INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-287-6657INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-294-7572INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-308-2060INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-406-2899INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-410-8745INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-416-4187INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-470-8521INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-478-5203INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-495-7660INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-587-6256INTERCHANGEABLE
RELAY,ELECTROMAGNETIC

Frequently Asked Questions

What is NSN 5945-01-666-8973?

NSN 5945-01-666-8973 is a Relay,electromagnetic, manufactured by Leach International Corp Div Leach International Corporation, classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-01-666-8973?

NSN 5945-01-666-8973 has 11 cross-referenced part numbers: JA-J2F-003 (Leach International Corp Div Leach International Corporation), PL405815-01-01 FN K2 (Bae Systems Controls Inc.), M83536/11-008L (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS27401-22M (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-83536 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 6 more.

What NSN replaces 5945-01-666-8973?

There are 12 known substitutes for 5945-01-666-8973: 5945-01-129-7628, 5945-01-248-1898, 5945-01-287-6657 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of JA-J2F-003?

Key specifications for JA-J2F-003: Failure Rate Suffix Letter: L; Frequency in Hertz: 400.0 NOMINAL; Nonpile-Up Main Contact Arrangement: 2 POLE, DOUBLE THROW, BOTH POSITIONS MAINTAINED; Center to Center Distance Between Mounting Facilities Parallel to Length: 1.396 INCHES MINIMUM AND 1.446 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-01-666-8973 still in active supply?

NSN 5945-01-666-8973 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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