PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4609Relay,thermal

Ezeflow Fittings Corp Sub of Custom Alloy Corp · NSN 5945-01-181-4237 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-01-181-4237 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-181-4237. Primary manufacturer part number: 4609.
Features
  • Relay,thermal — FSC 5945
  • Overall Diameter: 1.280 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Ezeflow Fittings Corp Sub of Custom Alloy Corp
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,thermal, cataloged under National Stock Number 5945-01-181-4237, 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 Ezeflow Fittings Corp Sub of Custom Alloy Corp. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-01-181-4237
Primary Part Number4609
Item NameRelay,thermal
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerEzeflow Fittings Corp Sub of Custom Alloy Corp
StatusACTIVE
Overall Diameter1.280 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3110-00-155-6849309SWI INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
5365-00-507-326070717 INTERCHANGEABLE
Spacer,ring
Cummins Inc.
1680-00-677-4763460-9 INTERCHANGEABLE
Connector,gearbox
Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc
6105-00-752-2124110A122 INTERCHANGEABLE
Motor,direct Current
Globe Motors, Inc. Dba Allient Dayton
5950-00-802-57634609 INTERCHANGEABLE
Coil,radio Frequency
Bourns Inc
5985-01-025-39024609 INTERCHANGEABLE
Adapter,waveguide
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
4520-01-299-92854609 INTERCHANGEABLE
Heater,fuel Oil Ele
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
6665-01-315-12784609 INTERCHANGEABLE
Detector,gas
Ghc Specialty Brands, Llc Dba Lab Safety Supply
4210-01-387-00154609 INTERCHANGEABLE
Bucket Wiring Harne
Sims Fiberglass Co
3040-01-436-58034609-545 INTERCHANGEABLE
Connecting Link,rigid
Tyee Aircraft Inc Div Tyee Aircraft
Cross-Reference Index
Part NumberManufacturer
4609 Ezeflow Fittings Corp Sub of Custom Alloy Corp (USA)
7441743P1 Lockheed Martin Corporation Div Rms (USA)
Related Parts
3110-00-155-6849INTERCHANGEABLE
BEARING,BALL,ANNULAR
309SWI
5365-00-507-3260INTERCHANGEABLE
SPACER,RING
70717
1680-00-677-4763INTERCHANGEABLE
CONNECTOR,GEARBOX
460-9
6105-00-752-2124INTERCHANGEABLE
MOTOR,DIRECT CURRENT
110A122
5950-00-802-5763INTERCHANGEABLE
COIL,RADIO FREQUENCY
4609
5985-01-025-3902INTERCHANGEABLE
ADAPTER,WAVEGUIDE
4609
4520-01-299-9285INTERCHANGEABLE
HEATER,FUEL OIL ELE
4609
6665-01-315-1278INTERCHANGEABLE
DETECTOR,GAS
4609
4210-01-387-0015INTERCHANGEABLE
BUCKET WIRING HARNE
4609
3040-01-436-5803INTERCHANGEABLE
CONNECTING LINK,RIGID
4609-545
5120-01-562-0821INTERCHANGEABLE
SOCKET SET,SOCKET WRENCH
4609

Frequently Asked Questions

What is NSN 5945-01-181-4237?

NSN 5945-01-181-4237 is a Relay,thermal, manufactured by Ezeflow Fittings Corp Sub of Custom Alloy Corp, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-01-181-4237?

NSN 5945-01-181-4237 has 2 cross-referenced part numbers: 4609 (Ezeflow Fittings Corp Sub of Custom Alloy Corp), 7441743P1 (Lockheed Martin Corporation Div Rms).

What NSN replaces 5945-01-181-4237?

There are 11 known substitutes for 5945-01-181-4237: 3110-00-155-6849, 5365-00-507-3260, 1680-00-677-4763 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4609?

Key specifications for 4609: Overall Diameter: 1.280 INCHES NOMINAL IN; Overall Length: 3.320 INCHES NOMINAL IN. 2 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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