PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11861Heater,fluid,electric

Sure Marine Service Inc. · NSN 4520-01-630-5654 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-630-5654 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-630-5654. Primary manufacturer part number: 11861.
Features
  • Heater,fluid,electric — FSC 4520
  • Accessory Components and Quantity: ALUMINUM TANK AND COVER, HEAT EXCHANGER, IGNITION PROTECTION, PRESSURE RELIEF VALVE AND DRAIN
  • Voltage in Volts and Current Type: 240.0 AC
  • Material: ALUMINUM
  • 1 verified cross-reference
  • Primary manufacturer: Sure Marine Service Inc.
Applications
  • Applications requiring Aluminum construction
General Description

The Heater,fluid,electric, cataloged under National Stock Number 4520-01-630-5654, 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 Sure Marine Service Inc.. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-01-630-5654
Primary Part Number11861
Item NameHeater,fluid,electric
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerSure Marine Service Inc.
StatusACTIVE
Accessory Components and QuantityALUMINUM TANK AND COVER, HEAT EXCHANGER, IGNITION PROTECTION, PRESSURE RELIEF VALVE AND DRAIN
Voltage in Volts and Current Type240.0 AC
MaterialALUMINUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5350-00-224-668611861 INTERCHANGEABLE
Buffing Compound
Southwest Metal Finishing Supply Co
5136-00-261-3268 INTERCHANGEABLE
Tap,thread Cutting
1680-00-614-303511861 INTERCHANGEABLE
Body,hyd 3way Valve
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5950-00-706-9423 INTERCHANGEABLE
Transformer,radio Frequency
6680-00-966-44531113G0120304 INTERCHANGEABLE
Generator,tachometer
Elbitamerica, Inc.
5330-01-080-29371186-1 INTERCHANGEABLE
Gasket
Aerco International, Inc. Dba Aerco International Inc
1377-01-082-2897779V010D004-5 INTERCHANGEABLE
Initiator,pressure Actuated
Universal Propulsion Company Inc Dba Goodrich Div Universal Propulsion Co., Inc.
5340-01-336-424611861 INTERCHANGEABLE
Clip,spring Tension
Auto Vehicle Parts Co Dba Au-Ve-Co
3110-01-435-400811861 INTERCHANGEABLE
Bearing,ball,annular
Paccar Winch Inc Dba Paccar Winch Division
6515-01-595-62115100-015-252 INTERCHANGEABLE
Attachment,drill
Stryker Sales, Llc Div Stryker Instruments
Cross-Reference Index
Part NumberManufacturer
11861 PRIMARY Sure Marine Service Inc. (USA)
Related Parts
5350-00-224-6686INTERCHANGEABLE
BUFFING COMPOUND
11861
5136-00-261-3268INTERCHANGEABLE
TAP,THREAD CUTTING
1680-00-614-3035INTERCHANGEABLE
BODY,HYD 3WAY VALVE
11861
5950-00-706-9423INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
6680-00-966-4453INTERCHANGEABLE
GENERATOR,TACHOMETER
1113G0120304
5330-01-080-2937INTERCHANGEABLE
GASKET
1186-1
1377-01-082-2897INTERCHANGEABLE
INITIATOR,PRESSURE ACTUATED
779V010D004-5
5340-01-336-4246INTERCHANGEABLE
CLIP,SPRING TENSION
11861
3110-01-435-4008INTERCHANGEABLE
BEARING,BALL,ANNULAR
11861
6515-01-595-6211INTERCHANGEABLE
ATTACHMENT,DRILL
5100-015-252
2920-01-643-9614INTERCHANGEABLE
GENERATOR,ENGINE ACCESSORY
ED001157-3600-S
4410-01-680-7499INTERCHANGEABLE
HEATER,WATER,ELECTRIC
11861

Frequently Asked Questions

What is NSN 4520-01-630-5654?

NSN 4520-01-630-5654 is a Heater,fluid,electric, manufactured by Sure Marine Service Inc., classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-01-630-5654?

NSN 4520-01-630-5654 has 1 cross-referenced part number: 11861 (Sure Marine Service Inc.).

What NSN replaces 4520-01-630-5654?

There are 12 known substitutes for 4520-01-630-5654: 5350-00-224-6686, 5136-00-261-3268, 1680-00-614-3035 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11861?

Key specifications for 11861: Overall Height: 16.125 INCHES NOMINAL IN; Accessory Components and Quantity: ALUMINUM TANK AND COVER, HEAT EXCHANGER, IGNITION PROTECTION, PRESSURE RELIEF VALVE AND DRAIN; Overall Width: 16.125 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: MARINE ELECTRIC WATER HEATER W/FRONT HEAT EXCHANGER. 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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