PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1MAPT12Relay,electromagnetic

Te Connectivity Corporation · NSN 5945-01-199-5570 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-01-199-5570 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-199-5570. Primary manufacturer part number: 1MAPT12.
Features
  • Relay,electromagnetic — FSC 5945
  • Duty Type: CONTINUOUS
  • Main Contact Load Current Rating at Maximum Rated Voltage: 2.0 AMPERES DC RESISTIVE LOAD
  • Main Contact Maximum Voltage Rating in Volts: 28.0 DC
  • Nonpile-Up Main Contact Arrangement: 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
  • Operating Voltage Rating and Type at Specified Temp: 12.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
  • Terminal Type and Quantity: 7 PIN ENERGIZING ELEMENT AND CONTACTS
  • Winding DC Resistance Rating: 500.0 OHMS NOMINAL SINGLE WINDING
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-01-199-5570, 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 Te Connectivity Corporation. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-01-199-5570
Primary Part Number1MAPT12
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerTe Connectivity Corporation
StatusACTIVE
Duty TypeCONTINUOUS
Main Contact Load Current Rating at Maximum Rated Voltage2.0 AMPERES DC RESISTIVE LOAD
Main Contact Maximum Voltage Rating in Volts28.0 DC
Nonpile-Up Main Contact Arrangement1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Operating Voltage Rating and Type at Specified Temp12.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Terminal Type and Quantity7 PIN ENERGIZING ELEMENT AND CONTACTS
Winding DC Resistance Rating500.0 OHMS NOMINAL SINGLE WINDING
Terminal Type and Quantity1 PIN DUMMY
Time Delay0.0075 SECONDS MAXIMUM FIXED RELEASE TIME
Mounting Facility Type and Quantity1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
Overall Diameter0.405 INCHES MAXIMUM IN
Environmental ProtectionHERMETIC AND SHOCK RESISTANT AND VIBRATION RESISTANT
Coil Quantity1
Time Delay0.002 SECONDS MAXIMUM FIXED OPERATE TIME
Criticality Code JustificationFEAT
Features ProvidedCOIL VOLTAGE SUPPRESSION
Winding Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5360-00-023-4130118930 INTERCHANGEABLE
Spring,helical,compression
Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)
5935-00-776-4617 INTERCHANGEABLE
Jack,tip
7320-01-442-65091189-30 INTERCHANGEABLE
Shaft Drive Ay
Insinger Machine Co
3020-01-442-7352D2529 INTERCHANGEABLE
Sprocket Wheel
Insinger Machine Co
3040-01-450-98021189-30 ITEM 1 INTERCHANGEABLE
Shaft,straight
Insinger Machine Co
Cross-Reference Index
Part NumberManufacturer
1MAPT12 Te Connectivity Corporation (USA)
1MAPT12 Te Connectivity Corporation (USA)
118930 Systron-Donner Corp Microwave/instrument Div (USA)
1MAPT12 Hi-G Co Inc Sub of Nytronics Inc (USA)
Related Parts
5360-00-023-4130INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
118930
5935-00-776-4617INTERCHANGEABLE
JACK,TIP
7320-01-442-6509INTERCHANGEABLE
SHAFT DRIVE AY
1189-30
3020-01-442-7352INTERCHANGEABLE
SPROCKET WHEEL
D2529
3040-01-450-9802INTERCHANGEABLE
SHAFT,STRAIGHT
1189-30 ITEM 1

Frequently Asked Questions

What is NSN 5945-01-199-5570?

NSN 5945-01-199-5570 is a Relay,electromagnetic, manufactured by Te Connectivity Corporation, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-01-199-5570?

NSN 5945-01-199-5570 has 4 cross-referenced part numbers: 1MAPT12 (Te Connectivity Corporation), 1MAPT12 (Te Connectivity Corporation), 118930 (Systron-Donner Corp Microwave/instrument Div), 1MAPT12 (Hi-G Co Inc Sub of Nytronics Inc).

What NSN replaces 5945-01-199-5570?

There are 5 known substitutes for 5945-01-199-5570: 5360-00-023-4130, 5935-00-776-4617, 7320-01-442-6509 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1MAPT12?

Key specifications for 1MAPT12: Overall Length: 0.477 INCHES MAXIMUM IN; End Item Identification: TARAWA CLASS LHA; LOS ANGELES CLASS SSN (688); Duty Type: CONTINUOUS; Special Features: TRANSISTOR DRIVEN; WEAPON SYSTEM ESSENTIAL. 20 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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