PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16561Relay,electromagnetic

Airpax Corporation Llc Dba Airpax Corporation Llc · NSN 5945-00-583-7564 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-583-7564 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-583-7564. Primary manufacturer part number: 16561.
Features
  • Relay,electromagnetic — FSC 5945
  • Operating Voltage Rating and Type at Specified Temp: 28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
  • Mounting Facility Pattern: RECTANGULAR SINGLE MOUNTING FACILITY
  • Pile-Up Main Contact Form Arrangement: 1C
  • Winding Quantity: 1
  • Coil Quantity: 1
  • Mounting Facility Type and Quantity: 4 THREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Duty Type: CONTINUOUS
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-583-7564, 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 Airpax Corporation Llc Dba Airpax Corporation Llc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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
NSN5945-00-583-7564
Primary Part Number16561
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerAirpax Corporation Llc Dba Airpax Corporation Llc
StatusACTIVE
Operating Voltage Rating and Type at Specified Temp28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Mounting Facility PatternRECTANGULAR SINGLE MOUNTING FACILITY
Pile-Up Main Contact Form Arrangement1C
Winding Quantity1
Coil Quantity1
Mounting Facility Type and Quantity4 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Duty TypeCONTINUOUS
Center to Center Distance Between Mounting Facilities Parallel to Width0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Winding DC Resistance Rating445.0 OHMS NOMINAL SINGLE WINDING
Center to Center Distance Between Mounting Facilities Parallel to Length0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Main Contact Maximum Voltage Rating in Volts28.0 DC
Terminal Type and Quantity5 PIN ALL FUNCTIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-031-7996 INTERCHANGEABLE
Gasket
2510-00-101-51204033 INTERCHANGEABLE
Spring Assembly,leaf
Pdi Ground Support Systems, Inc.
5935-00-110-74531656-1 INTERCHANGEABLE
Adapter,connector
Fluke Electronics Corp
3110-00-183-7546302-1045P1 INTERCHANGEABLE
Ring,bearing,inner
Raytheon Company Dba Raytheon
5990-00-224-9408917123-1 INTERCHANGEABLE
Synchro,differential Transmitter
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5136-00-262-2195FRS T126 INTERCHANGEABLE
Tap,thread Cutting
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
2530-00-274-4443647712 INTERCHANGEABLE
Brake Lining Kit
Am General Llc
1560-00-532-935516561 INTERCHANGEABLE
Fitting,front Spar
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
5998-00-547-2642 INTERCHANGEABLE
Circuit Card Assembly
5220-00-566-40591440-4 INTERCHANGEABLE
Gage,plug,thread
Stanley Engineered Fastening Llc
Cross-Reference Index
Part NumberManufacturer
16561 Airpax Corporation Llc Dba Airpax Corporation Llc (USA)
TS-1276 Precision Switching Inc (USA)
5403-26 Airpax Corporation Llc Dba Airpax Corporation Llc (USA)
5403-26 Te Connectivity Corporation (USA)
14404 Cessna Aircraft Co Arc Avionics Div (USA)
Related Parts
5330-00-031-7996INTERCHANGEABLE
GASKET
2510-00-101-5120INTERCHANGEABLE
SPRING ASSEMBLY,LEAF
4033
5935-00-110-7453INTERCHANGEABLE
ADAPTER,CONNECTOR
1656-1
3110-00-183-7546INTERCHANGEABLE
RING,BEARING,INNER
302-1045P1
5990-00-224-9408INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL TRANSMITTER
917123-1
5136-00-262-2195INTERCHANGEABLE
TAP,THREAD CUTTING
FRS T126
2530-00-274-4443INTERCHANGEABLE
BRAKE LINING KIT
647712
1560-00-532-9355INTERCHANGEABLE
FITTING,FRONT SPAR
16561
5998-00-547-2642INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5220-00-566-4059INTERCHANGEABLE
GAGE,PLUG,THREAD
1440-4
5935-00-581-3395INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
165-61
4940-00-907-5983INTERCHANGEABLE
GUIDE,PISTON
1440-4

Frequently Asked Questions

What is NSN 5945-00-583-7564?

NSN 5945-00-583-7564 is a Relay,electromagnetic, manufactured by Airpax Corporation Llc Dba Airpax Corporation Llc, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-583-7564?

NSN 5945-00-583-7564 has 5 cross-referenced part numbers: 16561 (Airpax Corporation Llc Dba Airpax Corporation Llc), TS-1276 (Precision Switching Inc), 5403-26 (Airpax Corporation Llc Dba Airpax Corporation Llc), 5403-26 (Te Connectivity Corporation), 14404 (Cessna Aircraft Co Arc Avionics Div).

What NSN replaces 5945-00-583-7564?

There are 12 known substitutes for 5945-00-583-7564: 5330-00-031-7996, 2510-00-101-5120, 5935-00-110-7453 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16561?

Key specifications for 16561: Operating Voltage Rating and Type at Specified Temp: 28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING; Overall Height: 1.250 INCHES NOMINAL IN; Overall Width: 0.750 INCHES NOMINAL IN; Mounting Facility Pattern: RECTANGULAR SINGLE MOUNTING FACILITY. 15 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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