PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NA5-7820-32Relay,electromagnetic

The Boeing Company Div Legacy Am&m · NSN 5945-00-552-3449 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-552-3449 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-552-3449. Primary manufacturer part number: NA5-7820-32.
Features
  • Relay,electromagnetic — FSC 5945
  • Nominal Operating Current Rating and Type: 150.0 MILLIAMPERES DC SINGLE WINDING
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.688 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Main Contact Maximum Voltage Rating in Volts: 115.0 AC
  • Operating Voltage Rating and Type at Specified Temp: 28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
  • Coil Quantity: 1
  • Nonpile-Up Main Contact Arrangement: 6 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
  • Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-552-3449, 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 The Boeing Company Div Legacy Am&m. Government technical data includes 14 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-552-3449
Primary Part NumberNA5-7820-32
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerThe Boeing Company Div Legacy Am&m
StatusACTIVE
Nominal Operating Current Rating and Type150.0 MILLIAMPERES DC SINGLE WINDING
Center to Center Distance Between Mounting Facilities Parallel to Length1.688 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Main Contact Maximum Voltage Rating in Volts115.0 AC
Operating Voltage Rating and Type at Specified Temp28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Coil Quantity1
Nonpile-Up Main Contact Arrangement6 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Mounting Facility Type and Quantity2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Winding Quantity1
Terminal Type and Quantity20 PIN ALL FUNCTIONS
Main Contact Load Current Rating at Maximum Rated Voltage1.5 AMPERES AC RESISTIVE LOAD
Environmental ProtectionHERMETIC
Duty TypeCONTINUOUS
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Unthreaded Mounting Hole Diameter0.152 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2810-00-048-716110143 INTERCHANGEABLE
Cover
Mcculloch Corp
3110-00-100-31004553 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Federal-Mogul Corp Government Sales Dept
4820-00-305-224110143 INTERCHANGEABLE
Valve,pneumatic Tank
Tactair Fluid Controls Inc
5985-00-357-07371014-3 INTERCHANGEABLE
Attenuator,fixed
L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
5962-00-454-645548P233245 INTERCHANGEABLE
Microcircuit,digital
Herley Chicago Dba Stewart Warner Electronics
5136-00-729-5694 INTERCHANGEABLE
Tap,thread Cutting
4820-00-780-979310243 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Fairchild Industrial Products Company
5310-00-888-737810143 INTERCHANGEABLE
Washer,flat
Triumph Engine Control Systems Llc
6240-00-962-996110143 INTERCHANGEABLE
Lamp,incandescent
Westron Corporation Dba Westron Lighting
5950-01-027-3281 INTERCHANGEABLE
Transformer,power
Cross-Reference Index
Part NumberManufacturer
NA5-7820-32 The Boeing Company Div Legacy Am&m (USA)
10143C100 Freund Precision Inc (USA)
10143 Freund Precision Inc (USA)
300R003 Airpax Corporation Llc Dba Airpax Corporation Llc (USA)
Related Parts
2810-00-048-7161INTERCHANGEABLE
COVER
10143
3110-00-100-3100INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
4553
4820-00-305-2241INTERCHANGEABLE
VALVE,PNEUMATIC TANK
10143
5985-00-357-0737INTERCHANGEABLE
ATTENUATOR,FIXED
1014-3
5962-00-454-6455INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
48P233245
5136-00-729-5694INTERCHANGEABLE
TAP,THREAD CUTTING
4820-00-780-9793INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
10243
5310-00-888-7378INTERCHANGEABLE
WASHER,FLAT
10143
6240-00-962-9961INTERCHANGEABLE
LAMP,INCANDESCENT
10143
5950-01-027-3281INTERCHANGEABLE
TRANSFORMER,POWER
5315-01-039-8780INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
6220-01-081-5849INTERCHANGEABLE
PLATE,COVER
10143

Frequently Asked Questions

What is NSN 5945-00-552-3449?

NSN 5945-00-552-3449 is a Relay,electromagnetic, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-552-3449?

NSN 5945-00-552-3449 has 4 cross-referenced part numbers: NA5-7820-32 (The Boeing Company Div Legacy Am&m), 10143C100 (Freund Precision Inc), 10143 (Freund Precision Inc), 300R003 (Airpax Corporation Llc Dba Airpax Corporation Llc).

What NSN replaces 5945-00-552-3449?

There are 12 known substitutes for 5945-00-552-3449: 2810-00-048-7161, 3110-00-100-3100, 4820-00-305-2241 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NA5-7820-32?

Key specifications for NA5-7820-32: Overall Length: 1.960 INCHES NOMINAL IN; Overall Height: 1.750 INCHES NOMINAL IN; Nominal Operating Current Rating and Type: 150.0 MILLIAMPERES DC SINGLE WINDING; Center to Center Distance Between Mounting Facilities Parallel to Length: 1.688 INCHES NOMINAL SINGLE MOUNTING FACILITY IN. 17 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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