Heater Unit4520-00-993-0153

NSN 4520-00-993-0153 · NIIN 009930153 · Part number 7741577G002

Lockheed Martin Corporation Div Rms · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 03538

Government record, cited

NSN 4520-00-993-0153 — this item is cataloged by the U.S. Government under National Stock Number 4520-00-993-0153. Manufacturer of record part number: 7741577G002.

Also searched as 4520-00-993-0153 · 4520009930153 · NIIN 009930153 · 00-993-0153 · FSC 4520 Space and Water Heating Equipment · CAGE 03538 · 7741577G002 · 7741577G2

Nearby stock numbers ← 4520-00-993-0152 · 4520-00-993-9683 Heating Element, Electrical, Nonimmersion Type →

Features

Heater Unit — FSC 4520
2 manufacturer part numbers on file
Manufacturer of record: Lockheed Martin Corporation Div Rms

Identification

NSN: 4520-00-993-0153
NIIN: 009930153
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
Primary part number: 7741577G002
Manufacturer: Lockheed Martin Corporation Div Rms

General Description

The Heater Unit, cataloged under National Stock Number 4520-00-993-0153, 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 Lockheed Martin Corporation Div Rms. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Heater Unit
FSC / FSG	4520 — Space and Water Heating Equipment (FSG 45)
Manufacturers	Lockheed Martin Corporation Div Rms (CAGE 03538)

Technical Specifications

Parameter	Value
NSN	4520-00-993-0153
Primary Part Number	7741577G002
Item Name	Heater Unit
FSC / FSG	4520 / 45 — Space and Water Heating Equipment
Manufacturer	Lockheed Martin Corporation Div Rms
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
7741577G002 PRIMARY	Lockheed Martin Corporation Div Rms (USA)
7741577G2	Lockheed Martin Corporation Div Rms (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 4520-00-993-0153?

NSN 4520-00-993-0153 is a Heater Unit, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 4520, Space and Water Heating Equipment. Status: active.

What part numbers are listed for NSN 4520-00-993-0153?

NSN 4520-00-993-0153 has 2 manufacturer part numbers on file: 7741577G002 (Lockheed Martin Corporation Div Rms), 7741577G2 (Lockheed Martin Corporation Div Rms).

Is NSN 4520-00-993-0153 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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