PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

275565Heater,space,electric

Chromalox Inc Dba Chromalox Precision Heat and Control, Inc · NSN 4520-01-153-9294 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-153-9294 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-153-9294. Primary manufacturer part number: 275565.
Features
  • Heater,space,electric — FSC 4520
  • Mounting Type: FLOOR-WALL
  • Inclosure Material: STEEL
  • Specification/standard Data: 81349-MIL-H-22663 GOVERNMENT SPECIFICATION
  • Heat Delivery Direction: HORIZONTAL AND VERTICAL
  • Frequency in Hertz: 60.0
  • Heat Discharge Outlet Type: STATIONARY
  • Heating Element Type: ELECTRIC NONIMMERSION
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heater,space,electric, cataloged under National Stock Number 4520-01-153-9294, 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 Chromalox Inc Dba Chromalox Precision Heat and Control, Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-01-153-9294
Primary Part Number275565
Item NameHeater,space,electric
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerChromalox Inc Dba Chromalox Precision Heat and Control, Inc
StatusACTIVE
Mounting TypeFLOOR-WALL
Inclosure MaterialSTEEL
Specification/standard Data81349-MIL-H-22663 GOVERNMENT SPECIFICATION
Heat Delivery DirectionHORIZONTAL AND VERTICAL
Frequency in Hertz60.0
Heat Discharge Outlet TypeSTATIONARY
Heating Element TypeELECTRIC NONIMMERSION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4520-00-036-5932G123-21TYPET INTERCHANGEABLE
Heater,space,electric
Valad Electric Heating Corp.
4520-00-036-5934252-X21P18948-4 INTERCHANGEABLE
Heater,space,electric
Indeeco Llc Dba Indeeco
5996-00-224-6175 INTERCHANGEABLE
Amplifier,audio Frequency
4520-00-240-8311 INTERCHANGEABLE
Heater,space,electric
4520-00-240-8312 INTERCHANGEABLE
Heater,space,electric
4520-00-240-8313 INTERCHANGEABLE
Heater,space,electric
4520-00-240-8314 INTERCHANGEABLE
Heater,space,electric
6125-00-894-3522 INTERCHANGEABLE
Motor-Generator
4520-01-189-2101BH42.0-3-NM INTERCHANGEABLE
Heater,space,electric
Valad Electric Heating Corp.
4520-01-326-1396 INTERCHANGEABLE
Heater,space,electric
Cross-Reference Index
Part NumberManufacturer
21D8583H07 Westinghouse Electric Corp Control Business Unit
21D8583H07 Westinghouse Motor Co a Joint Venture (USA)
904J942 Westinghouse Electric Corp Power Generation-Generator Div (USA)
MIL-H-22663 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
904J942 PIECE 82 Westinghouse Electric Corp Power Generation-Generator Div (USA)
275565 PRIMARY Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA)
Related Parts
4520-00-036-5932INTERCHANGEABLE
HEATER,SPACE,ELECTRIC
G123-21TYPET
4520-00-036-5934INTERCHANGEABLE
HEATER,SPACE,ELECTRIC
252-X21P18948-4
5996-00-224-6175INTERCHANGEABLE
AMPLIFIER,AUDIO FREQUENCY
4520-00-240-8311INTERCHANGEABLE
HEATER,SPACE,ELECTRIC
4520-00-240-8312INTERCHANGEABLE
HEATER,SPACE,ELECTRIC
4520-00-240-8313INTERCHANGEABLE
HEATER,SPACE,ELECTRIC
4520-00-240-8314INTERCHANGEABLE
HEATER,SPACE,ELECTRIC
6125-00-894-3522INTERCHANGEABLE
MOTOR-GENERATOR
4520-01-189-2101INTERCHANGEABLE
HEATER,SPACE,ELECTRIC
BH42.0-3-NM
4520-01-326-1396INTERCHANGEABLE
HEATER,SPACE,ELECTRIC
6750-01-427-2837INTERCHANGEABLE
FILM,PHOTOGRAPHIC

Frequently Asked Questions

What is NSN 4520-01-153-9294?

NSN 4520-01-153-9294 is a Heater,space,electric, manufactured by Chromalox Inc Dba Chromalox Precision Heat and Control, Inc, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-01-153-9294?

NSN 4520-01-153-9294 has 6 cross-referenced part numbers: 21D8583H07 (Westinghouse Electric Corp Control Business Unit), 21D8583H07 (Westinghouse Motor Co a Joint Venture), 904J942 (Westinghouse Electric Corp Power Generation-Generator Div), MIL-H-22663 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 904J942 PIECE 82 (Westinghouse Electric Corp Power Generation-Generator Div) and 1 more.

What NSN replaces 4520-01-153-9294?

There are 11 known substitutes for 4520-01-153-9294: 4520-00-036-5932, 4520-00-036-5934, 5996-00-224-6175 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 275565?

Key specifications for 275565: Mounting Type: FLOOR-WALL; Inclosure Material: STEEL; Specification/standard Data: 81349-MIL-H-22663 GOVERNMENT SPECIFICATION; Heat Delivery Direction: HORIZONTAL AND VERTICAL. 7 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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