PartsTable TECHNICAL DATA SHEET

NSN 4520-01-705-3166Government record, cited

Heater, Space4520-01-705-3166

NSN 4520-01-705-3166 · NIIN 017053166 · Part number 052-551505-071

Chromalox Inc · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 07131

Government record, cited

NSN 4520-01-705-3166 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-705-3166. Manufacturer of record part number: 052-551505-071.

Also searched as 4520-01-705-3166 · 4520017053166 · NIIN 017053166 · 01-705-3166 · FSC 4520 Space and Water Heating Equipment · CAGE 07131 · 052-551505-071 · 052-551505-071 REV 3

Nearby stock numbers ← 4520-01-703-4009 Heating Element, Electrical, Nonim · 4520-01-705-3176 Heating Element, Electrical, Immer →

Features

Heater,space — FSC 4520
1 manufacturer part number on file
Manufacturer of record: Chromalox Inc

Identification

NSN: 4520-01-705-3166
NIIN: 017053166
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
Primary part number: 052-551505-071
Manufacturer: Chromalox Inc

General Description

The Heater,space, cataloged under National Stock Number 4520-01-705-3166, 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 Chromalox Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Heater,space
FSC / FSG	4520 — Space and Water Heating Equipment (FSG 45)
Manufacturers	Chromalox Inc (CAGE 07131)

Technical Specifications

Parameter	Value
NSN	4520-01-705-3166
Primary Part Number	052-551505-071
Item Name	Heater,space
FSC / FSG	4520 / 45 — Space and Water Heating Equipment
Manufacturer	Chromalox 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
052-551505-071 PRIMARY	Chromalox Inc (USA)

Reference documents

Reference	Meaning
052-551505-071 REV 3	D/9 Drawing number reference only Chromalox Inc

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 4520-01-705-3166?

NSN 4520-01-705-3166 is a Heater,space, manufactured by Chromalox Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.

What part numbers are listed for NSN 4520-01-705-3166?

NSN 4520-01-705-3166 has 1 manufacturer part number on file: 052-551505-071 (Chromalox Inc).

Is NSN 4520-01-705-3166 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.

PartsTable Design LLC · partstable.com