PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

322-873964-001Heating Element,electrical,nonim

Chromalox Inc Dba Chromalox Precision Heat and Control, Inc · NSN 4520-00-518-1329 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-00-518-1329 — this item is cataloged by the U.S. Government under National Stock Number 4520-00-518-1329. Primary manufacturer part number: 322-873964-001.
Features
  • Heating Element,electrical,nonim — FSC 4520
  • Element Radiation Spectrum: NONINFRARED
  • Body Style: TUBULAR, PLAIN
  • Length: 43.000 INCHES NOMINAL IN
  • Material: IRON SHEATH
  • Thread Series Designator: UNEF MOUNTING FACILITY
  • Material: GLASS FIBER AND SILICON CARBIDE RESISTANCE WIRE EMBEDDING/SUPPORT INSULATION
  • Frequency in Hertz: 50.0 AND 60.0
Applications
  • Applications requiring Iron Sheath construction
General Description

The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-00-518-1329, 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 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 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
NSN4520-00-518-1329
Primary Part Number322-873964-001
Item NameHeating Element,electrical,nonim
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerChromalox Inc Dba Chromalox Precision Heat and Control, Inc
StatusACTIVE
Element Radiation SpectrumNONINFRARED
Body StyleTUBULAR, PLAIN
Length43.000 INCHES NOMINAL IN
MaterialIRON SHEATH
Thread Series DesignatorUNEF MOUNTING FACILITY
MaterialGLASS FIBER AND SILICON CARBIDE RESISTANCE WIRE EMBEDDING/SUPPORT INSULATION
Frequency in Hertz50.0 AND 60.0
PhaseSINGLE SINGLE VOLTAGE
Voltage in Volts and Current Type208.0 AC SINGLE VOLTAGE
Thread Quantity24.0 PER INCH MOUNTING FACILITY
Element Quantity1
Maximum Wattage Rating in Watts1600.0 SINGLE VOLTAGE
Mounting Method StyleSCREW PLUG OR BUSHING TYPE MOUNTING FACILITY
Terminal Quantity2
Nominal Thread Size0.625 INCHES MOUNTING FACILITY IN
Terminal Length7.000 INCHES NOMINAL IN
Mounting Facility Length0.813 INCHES NOMINAL IN
Effective Heating Length1.000 INCHES NOMINAL IN
Element Connection StyleWIRE LEAD
Outside Diameter0.486 INCHES NOMINAL IN
Heat Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6540-00-346-280012116 INTERCHANGEABLE
Lens,diplopia Test
Gulden Ophthalmics Inc.
5330-00-365-22719B1691 INTERCHANGEABLE
Gasket
Caterpillar Inc Div Caterpillar Defense
5980-01-066-8050RL4484 INTERCHANGEABLE
Light Emitting Diode
Siemens Microelectronics Inc Optoelectronics Div
5910-01-110-0397 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
3455-01-216-784312116 INTERCHANGEABLE
Trepanning Tool,machine
Hougen Manufacturing, Inc
2990-01-262-1195 INTERCHANGEABLE
Cap Assembly,protective,muffler-
7530-01-316-4457 INTERCHANGEABLE
Index Sheet Set,loose-Leaf Binde
5120-01-430-7709 INTERCHANGEABLE
Socket,socket Wrench
5950-01-443-509212116 INTERCHANGEABLE
Transformer,pulse
Pico Electronics Inc
5935-01-549-052912116 INTERCHANGEABLE
Cover,electrical Connector
Teledyne Flir Unmanned Ground Systems, Inc
Cross-Reference Index
Part NumberManufacturer
322-873964-001 Pdi Ground Support Systems, Inc. (USA)
13230E3557 Cecom Lr Center (USA)
322-873964-001 PRIMARY Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA)
12116 Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA)
322-875964 Pdi Ground Support Systems, Inc. (USA)
Related Parts
6540-00-346-2800INTERCHANGEABLE
LENS,DIPLOPIA TEST
12116
5330-00-365-2271INTERCHANGEABLE
GASKET
9B1691
5980-01-066-8050INTERCHANGEABLE
LIGHT EMITTING DIODE
RL4484
5910-01-110-0397INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
3455-01-216-7843INTERCHANGEABLE
TREPANNING TOOL,MACHINE
12116
2990-01-262-1195INTERCHANGEABLE
CAP ASSEMBLY,PROTECTIVE,MUFFLER-
7530-01-316-4457INTERCHANGEABLE
INDEX SHEET SET,LOOSE-LEAF BINDE
5120-01-430-7709INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5950-01-443-5092INTERCHANGEABLE
TRANSFORMER,PULSE
12116
5935-01-549-0529INTERCHANGEABLE
COVER,ELECTRICAL CONNECTOR
12116
4730-01-571-2628INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
121-16

Frequently Asked Questions

What is NSN 4520-00-518-1329?

NSN 4520-00-518-1329 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 4520-00-518-1329?

NSN 4520-00-518-1329 has 5 cross-referenced part numbers: 322-873964-001 (Pdi Ground Support Systems, Inc.), 13230E3557 (Cecom Lr Center), 322-873964-001 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), 12116 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems), 322-875964 (Pdi Ground Support Systems, Inc.).

What NSN replaces 4520-00-518-1329?

There are 11 known substitutes for 4520-00-518-1329: 6540-00-346-2800, 5330-00-365-2271, 5980-01-066-8050 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 322-873964-001?

Key specifications for 322-873964-001: Element Radiation Spectrum: NONINFRARED; Body Style: TUBULAR, PLAIN; Length: 43.000 INCHES NOMINAL IN; Material: IRON SHEATH. 22 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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