Heater, Water, Electric4520-01-665-3709

NSN 4520-01-665-3709 · NIIN 016653709 · Part number 4-6 53225

Us Watermaker, Inc. · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 3DP10

Government record, cited

NSN 4520-01-665-3709 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-665-3709. Manufacturer of record part number: 4-6 53225.

Also searched as 4520-01-665-3709 · 4520016653709 · NIIN 016653709 · 01-665-3709 · FSC 4520 Space and Water Heating Equipment · CAGE 3DP10 · 4-6 53225

Nearby stock numbers ← 4520-01-665-0680 Quadrant, Damper Control · 4520-01-665-7031 Heating Element, Electrical, Nonim →

Features

Heater,water,electric — FSC 4520
Heating Element Wattage Rating: 10000.0 UPPER
1 manufacturer part number on file
Manufacturer of record: Us Watermaker, Inc.

Identification

NSN: 4520-01-665-3709
NIIN: 016653709
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
Primary part number: 4-6 53225
Manufacturer: Us Watermaker, Inc.

General Description

The Heater,water,electric, cataloged under National Stock Number 4520-01-665-3709, 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 Us Watermaker, Inc.. Government technical data includes 1 specification, 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.

Technical Specifications

Parameter	Value
NSN	4520-01-665-3709
Primary Part Number	4-6 53225
Item Name	Heater,water,electric
FSC / FSG	4520 / 45 — Space and Water Heating Equipment
Manufacturer	Us Watermaker, Inc.
Status	ACTIVE
Heating Element Wattage Rating	10000.0 UPPER

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
4-6 53225 PRIMARY	Us Watermaker, 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 4520-01-665-3709?

NSN 4520-01-665-3709 is a Heater,water,electric, manufactured by Us Watermaker, Inc., classified under FSC 4520, Space and Water Heating Equipment. Status: active.

What part numbers are listed for NSN 4520-01-665-3709?

NSN 4520-01-665-3709 has 1 manufacturer part number on file: 4-6 53225 (Us Watermaker, Inc.).

What are the specifications of 4-6 53225?

Key specifications for 4-6 53225: Heating Element Wattage Rating: 10000.0 UPPER; Part Name Assigned by Controlling Agency: IMMERSION HEATER; End Item Identification: REVERSE OSMOSIS SYSTEM; P/N: 4-6 70240. 1 specification is documented in the U.S. Government catalog.

Is NSN 4520-01-665-3709 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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