PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3570K33Heater,water,electric

Mcmaster-Carr Supply Co · NSN 4520-00-101-3965 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-00-101-3965 — this item is cataloged by the U.S. Government under National Stock Number 4520-00-101-3965. Primary manufacturer part number: 3570K33.
Features
  • Heater,water,electric — FSC 4520
  • Insulated Feature: INCLUDED
  • Overall Diameter: 23.000 INCHES NOMINAL IN
  • Heating Element Type: ANY ACCEPTABLE
  • Attachment Device: INCLUDED
  • Thermostatic Switch: INCLUDED
  • Voltage in Volts and Current Type: 230.0 AC
  • Heating Capacity Per Hour: 66.0 GALLONS
Applications
  • Applications requiring Steel construction
General Description

The Heater,water,electric, cataloged under National Stock Number 4520-00-101-3965, is classified within Federal Supply Class 4520 (No Item Name Available) of the Plumbing, Heating, and Waste Disposal group. The primary manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4520-00-101-3965
Primary Part Number3570K33
Item NameHeater,water,electric
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerMcmaster-Carr Supply Co
StatusCANCELLED
Insulated FeatureINCLUDED
Overall Diameter23.000 INCHES NOMINAL IN
Heating Element TypeANY ACCEPTABLE
Attachment DeviceINCLUDED
Thermostatic SwitchINCLUDED
Voltage in Volts and Current Type230.0 AC
Heating Capacity Per Hour66.0 GALLONS
Temp Rise Per Hour120.0 FAHRENHEIT DEGF
Environmental Attribute CodeWATER HEATERS, ELECTRIC RESISTANCE, RESIDENTIAL - FEMP-HEATING AND COOLING - ENERGY EFFICIENT PRODUCTS
MaterialSTEEL
Capacity66.0 GALLONS TANK
Surface TreatmentENAMEL OUTSIDE
Heating Element Wattage Rating4500.000 LOWER AND 4500.000 UPPER
Switch TypeSINGLE THROW
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4520-00-033-4283 INTERCHANGEABLE
Heater,water,electric
4520-00-033-4284 INTERCHANGEABLE
Heater,water,electric
4520-00-033-4286 INTERCHANGEABLE
Heater,water,electric
4520-00-033-4287 INTERCHANGEABLE
Heater,water,electric
4520-00-101-3967 INTERCHANGEABLE
Heater,water,electric
4520-00-143-9399 INTERCHANGEABLE
Heater,water,electric
4520-00-143-9400 INTERCHANGEABLE
Heater,water,electric
4520-00-143-9548 INTERCHANGEABLE
Heater,water,gas
4520-00-151-675381VP20S INTERCHANGEABLE
Heater,water,electric
Rheem Mfg Co
4520-00-585-2986 INTERCHANGEABLE
Heater,water,gas
Cross-Reference Index
Part NumberManufacturer
A-A-2956 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
3570K33 PRIMARY Mcmaster-Carr Supply Co (USA)
W-H-196 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AA29564R2S66 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
3570N16 Mcmaster-Carr Supply Co (USA)
UL 174 Underwriters Laboratories Inc (USA)
Related Parts
4520-00-033-4283INTERCHANGEABLE
HEATER,WATER,ELECTRIC
4520-00-033-4284INTERCHANGEABLE
HEATER,WATER,ELECTRIC
4520-00-033-4286INTERCHANGEABLE
HEATER,WATER,ELECTRIC
4520-00-033-4287INTERCHANGEABLE
HEATER,WATER,ELECTRIC
4520-00-101-3967INTERCHANGEABLE
HEATER,WATER,ELECTRIC
4520-00-143-9399INTERCHANGEABLE
HEATER,WATER,ELECTRIC
4520-00-143-9400INTERCHANGEABLE
HEATER,WATER,ELECTRIC
4520-00-143-9548INTERCHANGEABLE
HEATER,WATER,GAS
4520-00-151-6753INTERCHANGEABLE
HEATER,WATER,ELECTRIC
81VP20S
4520-00-585-2986INTERCHANGEABLE
HEATER,WATER,GAS
4520-00-585-2989INTERCHANGEABLE
HEATER,WATER,ELECTRIC
4520-00-585-2989
4520-00-585-2990INTERCHANGEABLE
HEATER,WATER,ELECTRIC

Frequently Asked Questions

What is NSN 4520-00-101-3965?

NSN 4520-00-101-3965 is a Heater,water,electric, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4520 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4520-00-101-3965?

NSN 4520-00-101-3965 has 6 cross-referenced part numbers: A-A-2956 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 3570K33 (Mcmaster-Carr Supply Co), W-H-196 (Federal Specifications Promulgated by General Services Administration Washington DC), AA29564R2S66 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 3570N16 (Mcmaster-Carr Supply Co) and 1 more.

What NSN replaces 4520-00-101-3965?

There are 12 known substitutes for 4520-00-101-3965: 4520-00-033-4283, 4520-00-033-4284, 4520-00-033-4286 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3570K33?

Key specifications for 3570K33: Insulated Feature: INCLUDED; Overall Diameter: 23.000 INCHES NOMINAL IN; Heating Element Type: ANY ACCEPTABLE; Attachment Device: INCLUDED. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4520-00-101-3965 still in active supply?

NSN 4520-00-101-3965 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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