PartsTable TECHNICAL DATA SHEET

NSN 4520-01-421-9938Government record, cited

Heater, Ventilation, Duct Type4520-01-421-9938

NSN 4520-01-421-9938 · NIIN 014219938 · Part number 3000-12V

Maradyne Corporation · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 0DBY7

Government record, cited

NSN 4520-01-421-9938 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-421-9938. Manufacturer of record part number: 3000-12V.

Also searched as 4520-01-421-9938 · 4520014219938 · NIIN 014219938 · 01-421-9938 · FSC 4520 Space and Water Heating Equipment · CAGE 0DBY7 · 3000-12V · NW32445

Nearby stock numbers ← 4520-01-421-8116 Heating Element, Electrical, Nonim · 4520-01-422-1501 Heating Element, Electrical, Nonim →

Features

Heater,ventilation,duct Type — FSC 4520
2 manufacturer part numbers on file
Manufacturer of record: Maradyne Corporation

Identification

NSN: 4520-01-421-9938
NIIN: 014219938
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
Primary part number: 3000-12V
Manufacturer: Maradyne Corporation

General Description

The Heater,ventilation,duct Type, cataloged under National Stock Number 4520-01-421-9938, 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 Maradyne Corporation. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4520-01-421-9938
Primary Part Number	3000-12V
Item Name	Heater,ventilation,duct Type
FSC / FSG	4520 / 45 — Space and Water Heating Equipment
Manufacturer	Maradyne Corporation
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
NW32445	Tld Wollard Llc (USA)
3000-12V PRIMARY	Maradyne Corporation (USA)

No interchangeability data on file.

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 4520-01-421-9938?

NSN 4520-01-421-9938 is a Heater,ventilation,duct Type, manufactured by Maradyne Corporation, classified under FSC 4520, Space and Water Heating Equipment. Status: active.

What part numbers are listed for NSN 4520-01-421-9938?

NSN 4520-01-421-9938 has 2 manufacturer part numbers on file: NW32445 (Tld Wollard Llc), 3000-12V (Maradyne Corporation).

What are the specifications of 3000-12V?

Key specifications for 3000-12V: End Item Identification: SPECIAL ACFT AND ENGINE TOOL AND SUPPORT EQUIP AND PARTS. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4520-01-421-9938 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.

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