NSN 4520-01-309-3302 · NIIN 013093302 · Part number EES-40KR202172000
Smith a O Water Products Co Div of a O Smith Corp · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 28611
Government record, cited
NSN 4520-01-309-3302 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-309-3302. Manufacturer of record part number: EES-40KR202172000.
Also searched as4520-01-309-3302 ·
4520013093302 ·
NIIN 013093302 ·
01-309-3302 ·
FSC 4520 Space and Water Heating Equipment · CAGE 28611 · EES-40KR202172000 · MDL EES-40K-910 · EES-4OKR2021720 00
Manufacturer of record: Smith a O Water Products Co Div of a O Smith Corp
Identification
NSN: 4520-01-309-3302
NIIN: 013093302
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
Primary part number: EES-40KR202172000
Manufacturer: Smith a O Water Products Co Div of a O Smith Corp
General Description
The Heater,water,electric, cataloged under National Stock Number 4520-01-309-3302, 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 Smith a O Water Products Co Div of a O Smith Corp. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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,water,electric
FSC / FSG
4520 — Space and Water Heating Equipment (FSG 45)
Manufacturers
Smith a O Water Products Co Div of a O Smith Corp (CAGE 28611)
Smith a O Water Products Co Div of a O Smith Corp (USA)
Reference documents
Reference
Meaning
EES-4OKR2021720 00
C/1Advisory reference — outside the item-of-supply concept
Zf Industrieantriebe Witten Gmbh
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 4520-01-309-3302?
NSN 4520-01-309-3302 is a Heater,water,electric, manufactured by Smith a O Water Products Co Div of a O Smith Corp, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
What part numbers are listed for NSN 4520-01-309-3302?
NSN 4520-01-309-3302 has 2 manufacturer part numbers on file: MDL EES-40K-910 (Smith a O Water Products Co Div of a O Smith Corp), EES-40KR202172000 (Smith a O Water Products Co Div of a O Smith Corp).
Is NSN 4520-01-309-3302 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.