PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

OT-2501-240VHeating Element,electrical,nonim

Chromalox Inc Dba Chromalox Precision Heat and Control, Inc · NSN 4520-01-025-3855 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-025-3855 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-025-3855. Primary manufacturer part number: OT-2501-240V.
Features
  • Heating Element,electrical,nonim — FSC 4520
  • Hole or Slot Quantity: 2
  • Mounting Method Style: SLOT OR HOLE TYPE MOUNTING FACILITY
  • Mounting Facility Width: 0.312 INCHES NOMINAL IN
  • Frequency in Hertz: 60.0
  • Length: 24.000 INCHES NOMINAL IN
  • Maximum Wattage Rating in Watts: 1000.0 SINGLE VOLTAGE
  • Element Quantity: 1
Applications
  • Applications requiring Steel Sheath construction
General Description

The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-025-3855, 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 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-01-025-3855
Primary Part NumberOT-2501-240V
Item NameHeating Element,electrical,nonim
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerChromalox Inc Dba Chromalox Precision Heat and Control, Inc
StatusACTIVE
Hole or Slot Quantity2
Mounting Method StyleSLOT OR HOLE TYPE MOUNTING FACILITY
Mounting Facility Width0.312 INCHES NOMINAL IN
Frequency in Hertz60.0
Length24.000 INCHES NOMINAL IN
Maximum Wattage Rating in Watts1000.0 SINGLE VOLTAGE
Element Quantity1
PhaseSINGLE SINGLE VOLTAGE
Watt Density Rating12.0 PER SQUARE INCH SINGLE VOLTAGE
Voltage in Volts and Current Type240.0 AC SINGLE VOLTAGE
MaterialSTEEL SHEATH
Element Connection StyleSTUD TYPE
Mounting Facility Length0.500 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width24.500 INCHES NOMINAL IN
Terminal Quantity2
Body StyleSTRIP ELEMENT
Element Radiation SpectrumNONINFRARED
Terminal Length0.562 INCHES NOMINAL IN
Width1.500 INCHES NOMINAL IN
Terminal Arrangement StyleOFFSET OR STAGGERED AT ONE END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5320-00-012-1232040854 INTERCHANGEABLE
Rivet,solid
Hoffman/new Yorker, Inc.
5999-00-257-5707310SB INTERCHANGEABLE
Clip,electrical
Birnbach Co Inc
5998-01-247-0442121-232 INTERCHANGEABLE
Circuit Card Assembly
Tricor Systems Inc
Cross-Reference Index
Part NumberManufacturer
PT-2501-240V Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA)
121232 Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA)
OT-2501-240V PRIMARY Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA)
Related Parts
5320-00-012-1232INTERCHANGEABLE
RIVET,SOLID
040854
5999-00-257-5707INTERCHANGEABLE
CLIP,ELECTRICAL
310SB
5998-01-247-0442INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
121-232

Frequently Asked Questions

What is NSN 4520-01-025-3855?

NSN 4520-01-025-3855 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 4520-01-025-3855?

NSN 4520-01-025-3855 has 3 cross-referenced part numbers: PT-2501-240V (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), 121232 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), OT-2501-240V (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc).

What NSN replaces 4520-01-025-3855?

There are 3 known substitutes for 4520-01-025-3855: 5320-00-012-1232, 5999-00-257-5707, 5998-01-247-0442. Verify interchangeability with system specifications before substitution.

What are the specifications of OT-2501-240V?

Key specifications for OT-2501-240V: Hole or Slot Quantity: 2; Mounting Method Style: SLOT OR HOLE TYPE MOUNTING FACILITY; Mounting Facility Width: 0.312 INCHES NOMINAL IN; Frequency in Hertz: 60.0. 21 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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