PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E320Heater,water,steam-Hot Water Hea

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4520-01-413-2564 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-413-2564 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-413-2564. Primary manufacturer part number: E320.
Features
  • Heater,water,steam-Hot Water Hea — FSC 4520
  • Mounting Position: HORIZONTAL
  • Water Outlet Connection Quantity: 1
  • Water Inlet Connection Quantity: 1
  • Supplementary Features: INLET AND OUTLET CONNECTIONS ARE MADE WITH "VICTAULIC" COUPLINGS
  • Material: STEEL AND COPPER
  • Outside Diameter: 32.000 INCHES NOMINAL IN
  • 2 verified cross-references
Applications
  • Applications requiring Steel and Copper construction
General Description

The Heater,water,steam-Hot Water Hea, cataloged under National Stock Number 4520-01-413-2564, 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 Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-01-413-2564
Primary Part NumberE320
Item NameHeater,water,steam-Hot Water Hea
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Mounting PositionHORIZONTAL
Water Outlet Connection Quantity1
Water Inlet Connection Quantity1
Supplementary FeaturesINLET AND OUTLET CONNECTIONS ARE MADE WITH "VICTAULIC" COUPLINGS
MaterialSTEEL AND COPPER
Outside Diameter32.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
1075-00-954-6483 INTERCHANGEABLE
Control,degaussing
5950-01-110-2408E320 INTERCHANGEABLE
Transformer,power
Hubbell Industrial Controls, Inc
6150-01-362-9884122106-004 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Marathonnorco Aerospace, Inc. Dba Christie Electric
6105-01-436-0215E320 INTERCHANGEABLE
Motor,alternating Current
General Electric Co Motor Business Group
7025-01-495-7179E320 INTERCHANGEABLE
Printer,automatic Data Processin
Lexmark Intl Inc Federal Sales Div
4240-01-560-8471E3-20 INTERCHANGEABLE
Filter,gas
Flair Corporation Dba S P X Air Treatment Div Dehydration
Cross-Reference Index
Part NumberManufacturer
E320 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
U901961510 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
1075-00-954-6483INTERCHANGEABLE
CONTROL,DEGAUSSING
5950-01-110-2408INTERCHANGEABLE
TRANSFORMER,POWER
E320
6150-01-362-9884INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
122106-004
6105-01-436-0215INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
E320
7025-01-495-7179INTERCHANGEABLE
PRINTER,AUTOMATIC DATA PROCESSIN
E320
4240-01-560-8471INTERCHANGEABLE
FILTER,GAS
E3-20

Frequently Asked Questions

What is NSN 4520-01-413-2564?

NSN 4520-01-413-2564 is a Heater,water,steam-Hot Water Hea, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-01-413-2564?

NSN 4520-01-413-2564 has 2 cross-referenced part numbers: E320 (Leslie Controls, Inc. Dba Leslie Controls Inc), U901961510 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4520-01-413-2564?

There are 6 known substitutes for 4520-01-413-2564: 1075-00-954-6483, 5950-01-110-2408, 6150-01-362-9884 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of E320?

Key specifications for E320: Mounting Position: HORIZONTAL; Water Outlet Connection Quantity: 1; Special Features: STEAM PRESSURE GAUGE, HOT WATER OUTLET THERMOMETER, STEAM AND HOT WATER CONTROL VALVES, STOP VALVES; Water Inlet Connection Quantity: 1. 9 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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