PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4337Heating Element,electrical,nonim

Hoyt Corporation · NSN 4520-00-871-8393 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-00-871-8393 — this item is cataloged by the U.S. Government under National Stock Number 4520-00-871-8393. Primary manufacturer part number: 4337.
Features
  • Heating Element,electrical,nonim — FSC 4520
  • Element Radiation Spectrum: NONINFRARED
  • Length: 8.000 INCHES NOMINAL IN
  • Element Quantity: 1
  • Element Connection Style: WIRE LEAD
  • Effective Heating Length: 7.375 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING SHEATH
  • Terminal Length: 3.000 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Corrosion Resisting Sheath construction
General Description

The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-00-871-8393, is classified within Federal Supply Class 4520 (No Item Name Available) of the Plumbing, Heating, and Waste Disposal group. The primary manufacturer of record is Hoyt Corporation. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-00-871-8393
Primary Part Number4337
Item NameHeating Element,electrical,nonim
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerHoyt Corporation
StatusACTIVE
Element Radiation SpectrumNONINFRARED
Length8.000 INCHES NOMINAL IN
Element Quantity1
Element Connection StyleWIRE LEAD
Effective Heating Length7.375 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING SHEATH
Terminal Length3.000 INCHES NOMINAL IN
Body StyleODD/IRREGULAR SHAPED ITEMS
Heat Quantity1
PhaseNOT RATED SINGLE VOLTAGE
Outside Diameter0.875 INCHES NOMINAL IN
Voltage in Volts and Current Type120.0 AC SINGLE VOLTAGE
Terminal Quantity2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5306-00-208-53824337 INTERCHANGEABLE
Bolt,machine
Brinkley Technology Group Llc Dba Hercules Manufacturing
2805-00-386-34296107385 INTERCHANGEABLE
Valve,poppet,engine
General Motors Llc Dba General Motors Llc
4720-00-393-3908 INTERCHANGEABLE
Hose Assembly,nonmetallic
5935-01-034-82204337 INTERCHANGEABLE
Connector Body,plug,electrical
General Microwave Corporation Div Kratos Microwave Electronics
5355-01-062-22474337 INTERCHANGEABLE
Knob
Avo Intl
4820-01-091-294692031E INTERCHANGEABLE
Seal Union Assembly,valve
Griswold Industries Dba Cla-Val Co
2925-01-178-00634337 INTERCHANGEABLE
Switch,lock,ignition
Adams Rite Aerospace, Inc
5330-01-324-884843-37 INTERCHANGEABLE
Ring,wiper
Ortman Fluid Power Quincy Compressor Div Sub of Coltec Industries Inc
5305-01-387-12524337 INTERCHANGEABLE
Screw,shoulder
Roller Bearing Co of America, Inc Div Pic Design
5310-01-394-44734337 INTERCHANGEABLE
Washer,lock
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
Cross-Reference Index
Part NumberManufacturer
4337 PRIMARY Hoyt Corporation (USA)
Related Parts
5306-00-208-5382INTERCHANGEABLE
BOLT,MACHINE
4337
2805-00-386-3429INTERCHANGEABLE
VALVE,POPPET,ENGINE
6107385
4720-00-393-3908INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
5935-01-034-8220INTERCHANGEABLE
CONNECTOR BODY,PLUG,ELECTRICAL
4337
5355-01-062-2247INTERCHANGEABLE
KNOB
4337
4820-01-091-2946INTERCHANGEABLE
SEAL UNION ASSEMBLY,VALVE
92031E
2925-01-178-0063INTERCHANGEABLE
SWITCH,LOCK,IGNITION
4337
5330-01-324-8848INTERCHANGEABLE
RING,WIPER
43-37
5305-01-387-1252INTERCHANGEABLE
SCREW,SHOULDER
4337
5310-01-394-4473INTERCHANGEABLE
WASHER,LOCK
4337

Frequently Asked Questions

What is NSN 4520-00-871-8393?

NSN 4520-00-871-8393 is a Heating Element,electrical,nonim, manufactured by Hoyt Corporation, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-00-871-8393?

NSN 4520-00-871-8393 has 1 cross-referenced part number: 4337 (Hoyt Corporation).

What NSN replaces 4520-00-871-8393?

There are 10 known substitutes for 4520-00-871-8393: 5306-00-208-5382, 2805-00-386-3429, 4720-00-393-3908 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4337?

Key specifications for 4337: Element Radiation Spectrum: NONINFRARED; Length: 8.000 INCHES NOMINAL IN; Element Quantity: 1; Element Connection Style: WIRE LEAD. 13 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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