PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W-H-196 GPASE2TY4SZ66MODELRDHeater,water,electric

General Services Administration Federal Supply Service · NSN 4520-00-585-2990 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-00-585-2990 — this item is cataloged by the U.S. Government under National Stock Number 4520-00-585-2990. Primary manufacturer part number: W-H-196 GPASE2TY4SZ66MODELRD.
Features
  • Heater,water,electric — FSC 4520
  • Water Inlet Connection Thread Size and Series/type Designator: 3/4-14 NPT
  • Heating Element Type: DOUBLE
  • Phase: SINGLE
  • Frequency in Hertz: 60.0
  • Surface Treatment: GLASS FIBER INSIDE
  • Water Outlet Connection Quantity: 1
  • Departure From Cited Document: AS MODIFIED BY THE WATTAGE
Applications
  • Applications requiring Steel construction
General Description

The Heater,water,electric, cataloged under National Stock Number 4520-00-585-2990, 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 General Services Administration Federal Supply Service. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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
NSN4520-00-585-2990
Primary Part NumberW-H-196 GPASE2TY4SZ66MODELRD
Item NameHeater,water,electric
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusCANCELLED
Water Inlet Connection Thread Size and Series/type Designator3/4-14 NPT
Heating Element TypeDOUBLE
PhaseSINGLE
Frequency in Hertz60.0
Surface TreatmentGLASS FIBER INSIDE
Water Outlet Connection Quantity1
Departure From Cited DocumentAS MODIFIED BY THE WATTAGE
Overall Diameter24.000 INCHES NOMINAL IN
Heating Element Wattage Rating1250.000 LOWER AND 2000.000 UPPER
Heating Capacity Per Hour13.0 GALLONS
Switch TypeDOUBLE THROW OR SINGLE THROW
Water Inlet Connection Quantity1
Insulated FeatureINCLUDED
Thermostatic SwitchINCLUDED
Temp Rise Per Hour100.0 FAHRENHEIT DEGF
Capacity66.0 GALLONS TANK
Water Outlet Connection Thread Size and Series/type Designator3/4-14 NPT
Attachment DeviceINCLUDED
MaterialSTEEL
Operating Pressure127.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Environmental Attribute CodeWATER HEATERS, ELECTRIC RESISTANCE, RESIDENTIAL - FEMP-HEATING AND COOLING - ENERGY EFFICIENT PRODUCTS
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
4520-00-101-39653570K33 INTERCHANGEABLE
Heater,water,electric
Mcmaster-Carr Supply Co
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
Cross-Reference Index
Part NumberManufacturer
W-H-196 GPASE2TY4SZ66MODELRD General Services Administration Federal Supply Service (USA)
A-A-2956 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
UL 174 Underwriters Laboratories Inc (USA)
AA29564R2R66 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
W-H-196 Federal Specifications Promulgated by General Services Administration Washington DC (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
4520-00-101-3965INTERCHANGEABLE
HEATER,WATER,ELECTRIC
3570K33
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

Frequently Asked Questions

What is NSN 4520-00-585-2990?

NSN 4520-00-585-2990 is a Heater,water,electric, manufactured by General Services Administration Federal Supply Service, classified under FSC 4520 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4520-00-585-2990?

NSN 4520-00-585-2990 has 5 cross-referenced part numbers: W-H-196 GPASE2TY4SZ66MODELRD (General Services Administration Federal Supply Service), A-A-2956 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), UL 174 (Underwriters Laboratories Inc), AA29564R2R66 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), W-H-196 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 4520-00-585-2990?

There are 12 known substitutes for 4520-00-585-2990: 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 W-H-196 GPASE2TY4SZ66MODELRD?

Key specifications for W-H-196 GPASE2TY4SZ66MODELRD: Water Inlet Connection Thread Size and Series/type Designator: 3/4-14 NPT; Heating Element Type: DOUBLE; Phase: SINGLE; Frequency in Hertz: 60.0. 23 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4520-00-585-2990 still in active supply?

NSN 4520-00-585-2990 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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