Heaters4520-01-137-1139

NSN 4520-01-137-1139 · NIIN 011371139 · Part number CM22H1021

Columbia Machine Inc · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 34462

Government record, cited

NSN 4520-01-137-1139 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-137-1139. Manufacturer of record part number: CM22H1021.

Also searched as 4520-01-137-1139 · 4520011371139 · NIIN 011371139 · 01-137-1139 · FSC 4520 Space and Water Heating Equipment · CAGE 34462 · CM22H1021

Nearby stock numbers ← 4520-01-137-1138 Heater · 4520-01-137-1794 Heating Element, Electrical, Nonim →

Features

Heaters — FSC 4520
1 manufacturer part number on file
Manufacturer of record: Columbia Machine Inc

Identification

NSN: 4520-01-137-1139
NIIN: 011371139
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
Primary part number: CM22H1021
Manufacturer: Columbia Machine Inc

General Description

The Heaters, cataloged under National Stock Number 4520-01-137-1139, 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 Columbia Machine 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.

Catalog Facts

Item Name	Heaters
FSC / FSG	4520 — Space and Water Heating Equipment (FSG 45)
Manufacturers	Columbia Machine Inc (CAGE 34462)

Technical Specifications

Parameter	Value
NSN	4520-01-137-1139
Primary Part Number	CM22H1021
Item Name	Heaters
FSC / FSG	4520 / 45 — Space and Water Heating Equipment
Manufacturer	Columbia Machine 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)

Cross-Reference Index

Part Number	Manufacturer
CM22H1021 PRIMARY	Columbia Machine 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 4520-01-137-1139?

NSN 4520-01-137-1139 is a Heaters, manufactured by Columbia Machine Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.

What part numbers are listed for NSN 4520-01-137-1139?

NSN 4520-01-137-1139 has 1 manufacturer part number on file: CM22H1021 (Columbia Machine Inc).

Is NSN 4520-01-137-1139 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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