PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C301Heating Element,electrical,nonim

Chromalox Inc Dba Chromalox Precision Heat and Control, Inc · NSN 4520-00-274-6311 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-00-274-6311 — this item is cataloged by the U.S. Government under National Stock Number 4520-00-274-6311. Primary manufacturer part number: C301.
Features
  • Heating Element,electrical,nonim — FSC 4520
  • Voltage in Volts and Current Type: 120.0 AC SINGLE VOLTAGE
  • Element Quantity: 1
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY VOLTAGE
  • Case Diameter: 0.500 INCHES NOMINAL IN
  • Watt Density Rating: 26.0 PER SQUARE INCH SINGLE VOLTAGE
  • Material: STEEL CORROSION RESISTING SHEATH
  • Length: 2.375 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Corrosion Resisting Sheath construction
General Description

The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-00-274-6311, 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 Chromalox Inc Dba Chromalox Precision Heat and Control, Inc. Government technical data includes 17 verified specifications, 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-00-274-6311
Primary Part NumberC301
Item NameHeating Element,electrical,nonim
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerChromalox Inc Dba Chromalox Precision Heat and Control, Inc
StatusACTIVE
Voltage in Volts and Current Type120.0 AC SINGLE VOLTAGE
Element Quantity1
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY VOLTAGE
Case Diameter0.500 INCHES NOMINAL IN
Watt Density Rating26.0 PER SQUARE INCH SINGLE VOLTAGE
MaterialSTEEL CORROSION RESISTING SHEATH
Length2.375 INCHES NOMINAL IN
PhaseSINGLE SINGLE VOLTAGE
Maximum Wattage Rating in Watts75.0 SINGLE VOLTAGE
Element Radiation SpectrumNONINFRARED
Terminal Quantity2
Mounting Method StyleFRICTION TYPE MOUNTING FACILITY
Body StyleTUBULAR, PLAIN
Terminal Length10.000 INCHES NOMINAL IN
Element Connection StyleWIRE LEAD
Heat Quantity1
Outside Diameter0.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2940-00-529-273715 INTERCHANGEABLE
Filter Element,fluid
Naval Construction Battalion Center Civil Engineer Support Office Dba Exwc Ex24 Div Ex24 Tools
4730-00-720-46751618505 INTERCHANGEABLE
Coupling Half,quick Disconnect
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5999-00-763-2366 INTERCHANGEABLE
Wire Mesh,knitted
2920-00-983-0950AL61 INTERCHANGEABLE
Cap,ignition Distribution
Trw Inc Replacement Parts Div
4320-01-346-39773559200301 INTERCHANGEABLE
Pump Unit,reciprocating
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
5365-01-357-1823922910 INTERCHANGEABLE
Shim Assortment
Naval Sea Systems Command
5975-01-680-0535C-301 INTERCHANGEABLE
Chassis,electrical-Electronic Eq
Dfm Engineering, Inc. Dba Dfm Engineering Inc
Cross-Reference Index
Part NumberManufacturer
C301 Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA)
323635PC10 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
2940-00-529-2737INTERCHANGEABLE
FILTER ELEMENT,FLUID
15
4730-00-720-4675INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
1618505
5999-00-763-2366INTERCHANGEABLE
WIRE MESH,KNITTED
2920-00-983-0950INTERCHANGEABLE
CAP,IGNITION DISTRIBUTION
AL61
4320-01-346-3977INTERCHANGEABLE
PUMP UNIT,RECIPROCATING
3559200301
5365-01-357-1823INTERCHANGEABLE
SHIM ASSORTMENT
922910
5975-01-680-0535INTERCHANGEABLE
CHASSIS,ELECTRICAL-ELECTRONIC EQ
C-301

Frequently Asked Questions

What is NSN 4520-00-274-6311?

NSN 4520-00-274-6311 is a Heating Element,electrical,nonim, manufactured by Chromalox Inc Dba Chromalox Precision Heat and Control, Inc, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-00-274-6311?

NSN 4520-00-274-6311 has 2 cross-referenced part numbers: C301 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), 323635PC10 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 4520-00-274-6311?

There are 7 known substitutes for 4520-00-274-6311: 2940-00-529-2737, 4730-00-720-4675, 5999-00-763-2366 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C301?

Key specifications for C301: Voltage in Volts and Current Type: 120.0 AC SINGLE VOLTAGE; Element Quantity: 1; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY VOLTAGE; Case Diameter: 0.500 INCHES NOMINAL 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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