PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W-H-196 GPBTY4SZ40Heater,water,gas

General Services Administration Federal Supply Service · NSN 4520-00-585-2986 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-00-585-2986 — this item is cataloged by the U.S. Government under National Stock Number 4520-00-585-2986. Primary manufacturer part number: W-H-196 GPBTY4SZ40.
Features
  • Heater,water,gas — FSC 4520
  • Mounting Position: VERTICAL
  • Surface Treatment: ENAMEL OUTSIDE
  • Flue Pipe Size: 3.000 INCHES NOMINAL IN
  • Water Inlet Connection Thread Size and Series/type Designator: 3/4-14 NPT
  • Operating Pressure: 127.5 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
  • Furnished Items: PILOT,SAFETY
  • Overall Diameter: 21.000 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel construction
General Description

The Heater,water,gas, cataloged under National Stock Number 4520-00-585-2986, 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 17 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
NSN4520-00-585-2986
Primary Part NumberW-H-196 GPBTY4SZ40
Item NameHeater,water,gas
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusCANCELLED
Mounting PositionVERTICAL
Surface TreatmentENAMEL OUTSIDE
Flue Pipe Size3.000 INCHES NOMINAL IN
Water Inlet Connection Thread Size and Series/type Designator3/4-14 NPT
Operating Pressure127.5 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Furnished ItemsPILOT,SAFETY
Overall Diameter21.000 INCHES MAXIMUM IN
MaterialSTEEL
Operating Control MethodAUTOMATIC
Heating Capacity Per Hour27.7 GALLONS
Insulated FeatureINCLUDED
Water Outlet Connection Thread Size and Series/type Designator3/4-14 NPT
Capacity40.0 GALLONS TANK
Gas Connection Thread Size and Series/type Designator1/2-14 NPT
Environmental Attribute CodeWATER HEATERS, GAS, RESIDENTIAL - ENERGY STAR-HEATING AND COOLING - ENERGY EFFICIENT PRODUCTS
Gas for Which DesignedNATURAL GAS
Surface TreatmentGLASS FIBER INSIDE
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 GPBTY4SZ40 General Services Administration Federal Supply Service (USA)
A-A-2955 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)
AA29554R402986 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
ANSI Z21.10.1 American National Standards Institute Incorporated Dba American National Standards Institute (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
4520-00-585-2989INTERCHANGEABLE
HEATER,WATER,ELECTRIC
4520-00-585-2989
4520-00-585-2990INTERCHANGEABLE
HEATER,WATER,ELECTRIC

Frequently Asked Questions

What is NSN 4520-00-585-2986?

NSN 4520-00-585-2986 is a Heater,water,gas, 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 4520-00-585-2986?

NSN 4520-00-585-2986 has 5 cross-referenced part numbers: W-H-196 GPBTY4SZ40 (General Services Administration Federal Supply Service), A-A-2955 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), W-H-196 (Federal Specifications Promulgated by General Services Administration Washington DC), AA29554R402986 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), ANSI Z21.10.1 (American National Standards Institute Incorporated Dba American National Standards Institute).

What NSN replaces 4520-00-585-2986?

There are 12 known substitutes for 4520-00-585-2986: 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 GPBTY4SZ40?

Key specifications for W-H-196 GPBTY4SZ40: Mounting Position: VERTICAL; Surface Treatment: ENAMEL OUTSIDE; Flue Pipe Size: 3.000 INCHES NOMINAL IN; Water Inlet Connection Thread Size and Series/type Designator: 3/4-14 NPT. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4520-00-585-2986 still in active supply?

NSN 4520-00-585-2986 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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