Unit Heater, Air Circulating, Stea4520-01-691-6686

NSN 4520-01-691-6686 · NIIN 016916686 · Part number HEAT-SRFE-6-40

Amron International Inc · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 6S753

Government record, cited

NSN 4520-01-691-6686 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-691-6686. Manufacturer of record part number: HEAT-SRFE-6-40.

Also searched as 4520-01-691-6686 · 4520016916686 · NIIN 016916686 · 01-691-6686 · FSC 4520 Space and Water Heating Equipment · CAGE 6S753 · HEAT-SRFE-6-40

Nearby stock numbers ← 4520-01-691-2905 Heating Blanket, Electrical · 4520-01-692-0707 Heating Element, Electrical, Nonim →

Features

Unit Heater,air Circulating,stea — FSC 4520
1 manufacturer part number on file
Manufacturer of record: Amron International Inc

Identification

NSN: 4520-01-691-6686
NIIN: 016916686
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
Primary part number: HEAT-SRFE-6-40
Manufacturer: Amron International Inc

General Description

The Unit Heater,air Circulating,stea, cataloged under National Stock Number 4520-01-691-6686, 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 Amron International Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4520-01-691-6686
Primary Part Number	HEAT-SRFE-6-40
Item Name	Unit Heater,air Circulating,stea
FSC / FSG	4520 / 45 — Space and Water Heating Equipment
Manufacturer	Amron International Inc
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
HEAT-SRFE-6-40 PRIMARY	Amron International Inc (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 4520-01-691-6686?

NSN 4520-01-691-6686 is a Unit Heater,air Circulating,stea, manufactured by Amron International Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.

What part numbers are listed for NSN 4520-01-691-6686?

NSN 4520-01-691-6686 has 1 manufacturer part number on file: HEAT-SRFE-6-40 (Amron International Inc).

What are the specifications of HEAT-SRFE-6-40?

Key specifications for HEAT-SRFE-6-40: Part Name Assigned by Controlling Agency: HEATER W/THERMOSTAT; End Item Identification: DIVING SYSTEM. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4520-01-691-6686 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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