PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SC37-4Heating Element,electrical,nonim

Whiddett John C Co · NSN 4520-01-226-9878 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-226-9878 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-226-9878. Primary manufacturer part number: SC37-4.
Features
  • Heating Element,electrical,nonim — FSC 4520
  • Effective Heating Length: 3.500 INCHES NOMINAL IN
  • Element Radiation Spectrum: NONINFRARED
  • Cubic Measure: 0.001 CUBIC FEET
  • Element Quantity: 1
  • Maximum Wattage Rating in Watts: 220.0 SINGLE VOLTAGE
  • Length: 4.000 INCHES NOMINAL IN
  • Phase: TWO SINGLE VOLTAGE
Applications
  • Applications requiring Nickel Alloy Resistance Wire construction
General Description

The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-226-9878, 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 Whiddett John C Co. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN4520-01-226-9878
Primary Part NumberSC37-4
Item NameHeating Element,electrical,nonim
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerWhiddett John C Co
StatusACTIVE
Effective Heating Length3.500 INCHES NOMINAL IN
Element Radiation SpectrumNONINFRARED
Cubic Measure0.001 CUBIC FEET
Element Quantity1
Maximum Wattage Rating in Watts220.0 SINGLE VOLTAGE
Length4.000 INCHES NOMINAL IN
PhaseTWO SINGLE VOLTAGE
Frequency in Hertz50.0 AND 60.0
Watt Density Rating60.0 PER SQUARE INCH SINGLE VOLTAGE
Voltage in Volts and Current Type240.0 AC OR 240.0 DC SINGLE VOLTAGE
Purchase Description Identification51555-10504
MaterialNICKEL ALLOY RESISTANCE WIRE
Terminal Length12.625 INCHES NOMINAL IN
Outside Diameter0.375 INCHES NOMINAL IN
Heat Quantity1
Element Connection StyleWIRE LEAD
Terminal Quantity2
Body StyleTUBULAR, STEPPED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-02581264090 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Chrysler Realty Company Llc Dba Daimler Chrysler
5110-00-222-2119 INTERCHANGEABLE
Chisel,half Round Nose,hand
5120-00-240-5328 INTERCHANGEABLE
Wrench,adjustable
6510-00-279-7695 INTERCHANGEABLE
Sponge,surgical
5120-00-288-918410504 INTERCHANGEABLE
Extractor,tap
Walton Co the
4320-00-398-8284167292-03 INTERCHANGEABLE
Ring,wearing
Curtiss-Wright Electro-Mechanical Corporation Div Epd
3110-00-445-996210504 INTERCHANGEABLE
Bearing,roller,cylindrical
Eaton Aerospace, Llc Dba Jackson South
5310-00-550-115411610848 INTERCHANGEABLE
Nut,plain,hexagon
U S Army Tank Automotive Command Amsta-Im-Mm
5940-00-614-39701050-4 INTERCHANGEABLE
Terminal,stud
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect Rf Corporation
4820-00-783-2907 INTERCHANGEABLE
Disk,valve
Cross-Reference Index
Part NumberManufacturer
10504 Baxter Healthcare Corp IV Systems/gov Sales (USA)
10504 Medical Laboratory Automation Inc (USA)
SC37-4 PRIMARY Whiddett John C Co (USA)
SC374 Hotwatt, Inc (USA)
Related Parts
3110-00-100-0258INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
1264090
5110-00-222-2119INTERCHANGEABLE
CHISEL,HALF ROUND NOSE,HAND
5120-00-240-5328INTERCHANGEABLE
WRENCH,ADJUSTABLE
6510-00-279-7695INTERCHANGEABLE
SPONGE,SURGICAL
5120-00-288-9184INTERCHANGEABLE
EXTRACTOR,TAP
10504
4320-00-398-8284INTERCHANGEABLE
RING,WEARING
167292-03
3110-00-445-9962INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
10504
5310-00-550-1154INTERCHANGEABLE
NUT,PLAIN,HEXAGON
11610848
5940-00-614-3970INTERCHANGEABLE
TERMINAL,STUD
1050-4
4820-00-783-2907INTERCHANGEABLE
DISK,VALVE
6680-00-833-6128INTERCHANGEABLE
TACHOMETER,MECHANICAL,FIXED MOUN
10802
6680-00-861-3511INTERCHANGEABLE
PARTS KIT,REGULATOR
A10504

Frequently Asked Questions

What is NSN 4520-01-226-9878?

NSN 4520-01-226-9878 is a Heating Element,electrical,nonim, manufactured by Whiddett John C Co, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-01-226-9878?

NSN 4520-01-226-9878 has 4 cross-referenced part numbers: 10504 (Baxter Healthcare Corp IV Systems/gov Sales), 10504 (Medical Laboratory Automation Inc), SC37-4 (Whiddett John C Co), SC374 (Hotwatt, Inc).

What NSN replaces 4520-01-226-9878?

There are 12 known substitutes for 4520-01-226-9878: 3110-00-100-0258, 5110-00-222-2119, 5120-00-240-5328 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SC37-4?

Key specifications for SC37-4: Overall Length: 4.125 INCHES NOMINAL IN; Effective Heating Length: 3.500 INCHES NOMINAL IN; Element Radiation Spectrum: NONINFRARED; Cubic Measure: 0.001 CUBIC FEET. 20 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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