PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A3273426-122Relay,thermal

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5945-00-502-2457 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-502-2457 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-502-2457. Primary manufacturer part number: A3273426-122.
Features
  • Relay,thermal — FSC 5945
  • Mounting Facility Type and Quantity: 1 OCTAL BASE PLUG-IN
  • Contact Maximum Current Rating in Amps: 3.0 AC
  • Contact Maximum Voltage Rating in Volts: 450.0 AC
  • Contact Arrangement: SINGLE POLE, SINGLE THROW, NORMALLY OPEN
  • Heater Power Rating in Watts: 5.0
  • Terminal Type and Quantity: 8 PIN
  • Heater Voltage Rating in Volts: 117.0
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,thermal, cataloged under National Stock Number 5945-00-502-2457, 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 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 19 commercial cross-references from 14 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
NSN5945-00-502-2457
Primary Part NumberA3273426-122
Item NameRelay,thermal
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusCANCELLED
Mounting Facility Type and Quantity1 OCTAL BASE PLUG-IN
Contact Maximum Current Rating in Amps3.0 AC
Contact Maximum Voltage Rating in Volts450.0 AC
Contact ArrangementSINGLE POLE, SINGLE THROW, NORMALLY OPEN
Heater Power Rating in Watts5.0
Terminal Type and Quantity8 PIN
Heater Voltage Rating in Volts117.0
Delay Time in Seconds255.0 FIXED OPERATE MINIMUM AND 345.0 FIXED OPERATE MAXIMUM
Environmental ProtectionHERMETIC
Overall Diameter1.275 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3610-00-057-2217 INTERCHANGEABLE
Stud
5330-00-154-090311800 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5940-00-188-5440821 INTERCHANGEABLE
Terminal Board
Keystone Electronics Corp
5930-00-222-723213011-1 INTERCHANGEABLE
Switch,rotary
Drs Advanced Isr, Llc
6115-00-309-7785B2110 INTERCHANGEABLE
Separator,cross Bat
Stewart & Stevenson Power Products Llc
3110-00-817-7501 INTERCHANGEABLE
Bearing,roller,needle
5330-01-093-1149320-2110 INTERCHANGEABLE
Seal,plain
Stemco Inc Sub of Coltec Industries Inc
3120-01-159-93863965121 INTERCHANGEABLE
Parts Kit,bearing Replacement,me
General Motors Llc Dba General Motors Llc
5950-01-209-9554 INTERCHANGEABLE
Transformer,power
5998-01-431-7733 INTERCHANGEABLE
Extender Card,electronic Test
Cross-Reference Index
Part NumberManufacturer
501-B-1-1882 Jettron Products Inc (USA)
120N0300 Thermal Controls Div of Magnetic Windings Co (USA)
B2110 Jettron Products Inc (USA)
115N0300B Amperite Co Inc (USA)
VBE405-73 Thales Nederland (NLD)
115N0300 Amperite Co Inc (USA)
611A5818 E-Systems Inc Memcor Div Florida Opns (USA)
536-410-045 Drs Environmental Systems Inc (USA)
501B2110 Jettron Products Inc (USA)
A3273426-122 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
13011-1 Drs Environmental Systems Inc (USA)
5945PL1368601 Jednolity Indeks Materialowy - Uniform Material Index (POL)
13011-1 Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA)
563051-000 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
C218265-12 Raytheon Company Dba Raytheon Co (USA)
3145633 Naval Sea Systems Command (USA)
352250020123 Thales Nederland (NLD)
7408089-5 Lockheed Martin Corporation Div Rms (USA)
5L4751-004-09 Hensoldt Sensors Gmbh Div Seps (DEU)
Related Parts
3610-00-057-2217INTERCHANGEABLE
STUD
5330-00-154-0903INTERCHANGEABLE
SEAL,PLAIN ENCASED
11800
5940-00-188-5440INTERCHANGEABLE
TERMINAL BOARD
821
5930-00-222-7232INTERCHANGEABLE
SWITCH,ROTARY
13011-1
6115-00-309-7785INTERCHANGEABLE
SEPARATOR,CROSS BAT
B2110
3110-00-817-7501INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
5330-01-093-1149INTERCHANGEABLE
SEAL,PLAIN
320-2110
3120-01-159-9386INTERCHANGEABLE
PARTS KIT,BEARING REPLACEMENT,ME
3965121
5950-01-209-9554INTERCHANGEABLE
TRANSFORMER,POWER
5998-01-431-7733INTERCHANGEABLE
EXTENDER CARD,ELECTRONIC TEST
5930-01-432-1704INTERCHANGEABLE
SWITCH,THERMOSTATIC
130111
6660-01-539-0062INTERCHANGEABLE
RADIOSONDE SET
130111

Frequently Asked Questions

What is NSN 5945-00-502-2457?

NSN 5945-00-502-2457 is a Relay,thermal, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-502-2457?

NSN 5945-00-502-2457 has 19 cross-referenced part numbers: 501-B-1-1882 (Jettron Products Inc), 120N0300 (Thermal Controls Div of Magnetic Windings Co), B2110 (Jettron Products Inc), 115N0300B (Amperite Co Inc), VBE405-73 (Thales Nederland) and 14 more.

What NSN replaces 5945-00-502-2457?

There are 12 known substitutes for 5945-00-502-2457: 3610-00-057-2217, 5330-00-154-0903, 5940-00-188-5440 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A3273426-122?

Key specifications for A3273426-122: Mounting Facility Type and Quantity: 1 OCTAL BASE PLUG-IN; Contact Maximum Current Rating in Amps: 3.0 AC; Contact Maximum Voltage Rating in Volts: 450.0 AC; Special Features: INSTANTANEOUS RELEASE TIME: 55.0 SEC NOM. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-502-2457 still in active supply?

NSN 5945-00-502-2457 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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