PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20925-1Heater,space,electric

Valad Electric Heating Corp. · NSN 4520-01-329-1104 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-329-1104 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-329-1104. Primary manufacturer part number: 20925-1.
Features
  • Heater,space,electric — FSC 4520
  • Mounting Type: CEILING SUSPENDED OR WALL SUSPENDED, ROOM INTERIOR
  • Voltage in Volts: 240.0
  • Frequency in Hertz: 60.0
  • Surface Treatment: CHROMATE ZINC AND ENAMEL
  • Phase: SINGLE
  • Height: 17.000 INCHES NOMINAL IN
  • Air Circulation Device: PROPELLER FAN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heater,space,electric, cataloged under National Stock Number 4520-01-329-1104, 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 Valad Electric Heating Corp.. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-01-329-1104
Primary Part Number20925-1
Item NameHeater,space,electric
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerValad Electric Heating Corp.
StatusACTIVE
Mounting TypeCEILING SUSPENDED OR WALL SUSPENDED, ROOM INTERIOR
Voltage in Volts240.0
Frequency in Hertz60.0
Surface TreatmentCHROMATE ZINC AND ENAMEL
PhaseSINGLE
Height17.000 INCHES NOMINAL IN
Air Circulation DevicePROPELLER FAN
Inclosure MaterialSTEEL
Heat Delivery Rate17060.0 BRITISH THERMAL UNIT
Heat Discharge Outlet TypeADJUSTABLE
Operating Control TypeHAND SWITCH AND THERMOSTATIC
Width13.500 INCHES NOMINAL IN
Heat Outlet Quantity1
Quantity1
Circulated Air TypeHEATED
Heat Directing DeviceADJUSTABLE LOUVER
Heating Element TypeELECTRIC NONIMMERSION
Prime Mover TypeELECTRIC MOTOR
Depth14.500 INCHES NOMINAL IN
Heat Delivery DirectionHORIZONTAL
Current Rating in Amps20.8
Speed AdjustmentsSINGLE SPEED
Current TypeAC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5999-00-690-9773 INTERCHANGEABLE
Heatsink
3040-00-864-1234209251 INTERCHANGEABLE
Shaft,straight
Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
6695-01-120-891520925-01 INTERCHANGEABLE
Bezel,instrument Mounting
Industrial Electronic Engineers, Inc.
Cross-Reference Index
Part NumberManufacturer
77-0204-7 Valad Electric Heating Corp. (USA)
20925-1 PRIMARY Valad Electric Heating Corp. (USA)
20925.0-1 Valad Electric Heating Corp. (USA)
209L25.0-1NM PRIMARY Valad Electric Heating Corp. (USA)
Related Parts
5999-00-690-9773INTERCHANGEABLE
HEATSINK
3040-00-864-1234INTERCHANGEABLE
SHAFT,STRAIGHT
209251
6695-01-120-8915INTERCHANGEABLE
BEZEL,INSTRUMENT MOUNTING
20925-01

Frequently Asked Questions

What is NSN 4520-01-329-1104?

NSN 4520-01-329-1104 is a Heater,space,electric, manufactured by Valad Electric Heating Corp., classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-01-329-1104?

NSN 4520-01-329-1104 has 4 cross-referenced part numbers: 77-0204-7 (Valad Electric Heating Corp.), 20925-1 (Valad Electric Heating Corp.), 20925.0-1 (Valad Electric Heating Corp.), 209L25.0-1NM (Valad Electric Heating Corp.).

What NSN replaces 4520-01-329-1104?

There are 3 known substitutes for 4520-01-329-1104: 5999-00-690-9773, 3040-00-864-1234, 6695-01-120-8915. Verify interchangeability with system specifications before substitution.

What are the specifications of 20925-1?

Key specifications for 20925-1: Mounting Type: CEILING SUSPENDED OR WALL SUSPENDED, ROOM INTERIOR; Voltage in Volts: 240.0; Frequency in Hertz: 60.0; Special Features: 12.000 IN. CEILING/BULKHEAD BRACKET PROVIDED IN. 24 total characteristics are documented in the Federal Logistics Information System.

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