PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

58A122C181Relay,electromagnetic

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5945-00-556-7929 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-556-7929 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-556-7929. Primary manufacturer part number: 58A122C181.
Features
  • Relay,electromagnetic — FSC 5945
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
  • Thread Class: 2B SINGLE MOUNTING FACILITY
  • Mounting Facility Pattern: RECTANGULAR SINGLE MOUNTING FACILITY
  • Thread Quantity Per Inch: 32 SINGLE MOUNTING FACILITY
  • Terminal Type and Quantity: 4 PIN ALL FUNCTIONS
  • Operating Voltage Rating and Type at Specified Temp: 28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
  • Duty Type: CONTINUOUS
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-556-7929, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5945-00-556-7929
Primary Part Number58A122C181
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusCANCELLED
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Thread Class2B SINGLE MOUNTING FACILITY
Mounting Facility PatternRECTANGULAR SINGLE MOUNTING FACILITY
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Terminal Type and Quantity4 PIN ALL FUNCTIONS
Operating Voltage Rating and Type at Specified Temp28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Duty TypeCONTINUOUS
Center to Center Distance Between Mounting Facilities Parallel to Width0.500 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Coil Quantity1
Nonpile-Up Main Contact Arrangement1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Center to Center Distance Between Mounting Facilities Parallel to Length1.312 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Winding DC Resistance Rating85.0 OHMS NOMINAL SINGLE WINDING
Mounting Facility Type and Quantity4 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Winding Quantity1
Main Contact Load Current Rating at Maximum Rated Voltage15.0 AMPERES AC RESISTIVE LOAD
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Main Contact Maximum Voltage Rating in Volts115.0 AC
Features ProvidedPOLARIZED
Nominal Operating Current Rating and Type90.0 MILLIAMPERES DC SINGLE WINDING
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5935-00-280-09852035-0 INTERCHANGEABLE
Dummy Plug,telephone
Fluke Electronics Corp
4820-00-554-7634 INTERCHANGEABLE
Valve,shuttle
5340-00-911-245420381 INTERCHANGEABLE
Hinge,access Door
Silver King Refrigeration Inc.
4730-01-199-1439R39503 INTERCHANGEABLE
Adapter,straight,pipe to Hose
Deere & Company Dba Deere John Co
6350-01-237-886720350 INTERCHANGEABLE
Buzzer
G.s. Blodgett, Llc Div Blodgett
5365-01-356-6165 INTERCHANGEABLE
Spacer,plate
4820-01-396-1450A7465.001.108 INTERCHANGEABLE
Disk,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
7830-01-652-4098 INTERCHANGEABLE
Chair,lifeguard
5130-01-670-7074 INTERCHANGEABLE
Pad,polishing and Rubbing
Cross-Reference Index
Part NumberManufacturer
20350 Raytheon Company Dba Raytheon (USA)
58A122C181 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
359B118 Motorola Inc. Dba Integrated Information Systems Group (USA)
452-1285 Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions (USA)
359B118 General Dynamics Mission Systems, Inc. Dba Gdms (USA)
B0X-116 Allied Controls, Inc. (USA)
1565600 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
B0X256 Allied Controls, Inc. (USA)
Related Parts
5935-00-280-0985INTERCHANGEABLE
DUMMY PLUG,TELEPHONE
2035-0
4820-00-554-7634INTERCHANGEABLE
VALVE,SHUTTLE
5340-00-911-2454INTERCHANGEABLE
HINGE,ACCESS DOOR
20381
4730-01-199-1439INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
R39503
6350-01-237-8867INTERCHANGEABLE
BUZZER
20350
5365-01-356-6165INTERCHANGEABLE
SPACER,PLATE
4820-01-396-1450INTERCHANGEABLE
DISK,VALVE
A7465.001.108
7830-01-652-4098INTERCHANGEABLE
CHAIR,LIFEGUARD
5130-01-670-7074INTERCHANGEABLE
PAD,POLISHING AND RUBBING

Frequently Asked Questions

What is NSN 5945-00-556-7929?

NSN 5945-00-556-7929 is a Relay,electromagnetic, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-556-7929?

NSN 5945-00-556-7929 has 8 cross-referenced part numbers: 20350 (Raytheon Company Dba Raytheon), 58A122C181 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 359B118 (Motorola Inc. Dba Integrated Information Systems Group), 452-1285 (Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions), 359B118 (General Dynamics Mission Systems, Inc. Dba Gdms) and 3 more.

What NSN replaces 5945-00-556-7929?

There are 9 known substitutes for 5945-00-556-7929: 5935-00-280-0985, 4820-00-554-7634, 5340-00-911-2454 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 58A122C181?

Key specifications for 58A122C181: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY; Thread Class: 2B SINGLE MOUNTING FACILITY; Mounting Facility Pattern: RECTANGULAR SINGLE MOUNTING FACILITY; Thread Quantity Per Inch: 32 SINGLE MOUNTING FACILITY. 22 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-556-7929 still in active supply?

NSN 5945-00-556-7929 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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