NSN 4520-01-604-4440 · NIIN 016044440 · Part number 2303525
Caterpillar Inc Div Caterpillar Defense · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 11083
Government record, cited
NSN 4520-01-604-4440 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-604-4440. Manufacturer of record part number: 2303525.
Also searched as4520-01-604-4440 ·
4520016044440 ·
NIIN 016044440 ·
01-604-4440 ·
FSC 4520 Space and Water Heating Equipment · CAGE 11083 · 2303525
Nearby stock numbers← 4520-01-603-6536 Collar, Air Conditioning-Heating
·
4520-01-604-6260 Heater, Space, Electric →
Features
Heating Element,electrical,immer — FSC 4520
Length: 4.000 INCHES NOMINAL IN
Voltage in Volts and Current Type: 12.0 DC SINGLE VOLTAGE
Body Style: TUBULAR, SCREW TYPE
Element Radiation Spectrum: NONINFRARED
Material: GLASS SHEATH
1 manufacturer part number on file
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense
Identification
NSN: 4520-01-604-4440
NIIN: 016044440
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
Primary part number: 2303525
Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description
The Heating Element,electrical,immer, cataloged under National Stock Number 4520-01-604-4440, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Other items in FSC 4520 — Space and Water Heating Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4520-00-000-0098
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-000-0099
4520-00-000-0099 · Item name not on file
4520-00-001-1240
4520-00-001-1240 · Item name not on file
4520-00-001-3518
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-3519
HEATING ELEMENT,ELECTRICAL,IMMER
4520-00-001-6052
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-6298
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-7726
HEATER,DUCT TYPE,PORTABLE
Frequently Asked Questions
What is NSN 4520-01-604-4440?
NSN 4520-01-604-4440 is a Heating Element,electrical,immer, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
What part numbers are listed for NSN 4520-01-604-4440?
NSN 4520-01-604-4440 has 1 manufacturer part number on file: 2303525 (Caterpillar Inc Div Caterpillar Defense).
What are the specifications of 2303525?
Key specifications for 2303525: Length: 4.000 INCHES NOMINAL IN; Voltage in Volts and Current Type: 12.0 DC SINGLE VOLTAGE; Body Style: TUBULAR, SCREW TYPE; Overall Length: 4.000 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.
Is NSN 4520-01-604-4440 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.