NSN 4520-01-651-8599 · NIIN 016518599 · Part number STE78RX-4445
Watlow Electric Manufacturing Co Dba Watlow · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 79221
Government record, cited
NSN 4520-01-651-8599 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-651-8599. Manufacturer of record part number: STE78RX-4445.
Also searched as4520-01-651-8599 ·
4520016518599 ·
NIIN 016518599 ·
01-651-8599 ·
FSC 4520 Space and Water Heating Equipment · CAGE 79221 · STE78RX-4445
Manufacturer of record: Watlow Electric Manufacturing Co Dba Watlow
Identification
NSN: 4520-01-651-8599
NIIN: 016518599
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
Primary part number: STE78RX-4445
Manufacturer: Watlow Electric Manufacturing Co Dba Watlow
General Description
The Heater,space, cataloged under National Stock Number 4520-01-651-8599, 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 Watlow Electric Manufacturing Co Dba Watlow. 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,space
FSC / FSG
4520 — Space and Water Heating Equipment (FSG 45)
Manufacturers
Rolls-Royce Submarines Limited (CAGE K5086); Watlow Electric Manufacturing Co Dba Watlow (CAGE 79221)
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 4520-01-651-8599?
NSN 4520-01-651-8599 is a Heater,space, manufactured by Watlow Electric Manufacturing Co Dba Watlow, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
What part numbers are listed for NSN 4520-01-651-8599?
NSN 4520-01-651-8599 has 2 manufacturer part numbers on file: STE78RX-4445 (Rolls-Royce Submarines Limited), STE78RX-4445 (Watlow Electric Manufacturing Co Dba Watlow).
Is NSN 4520-01-651-8599 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.