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NSN 4520-00-271-9902Government record, cited
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Heater, Convection, Steam-Hot Wate4520-00-271-9902

NSN 4520-00-271-9902 · NIIN 002719902 · Part number S3802-921624NM1 1-2
Naval Sea Systems Command · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 53711
Government record, cited
NSN 4520-00-271-9902 — this item is cataloged by the U.S. Government under National Stock Number 4520-00-271-9902. Manufacturer of record part number: S3802-921624NM1 1-2.
Also searched as  4520-00-271-9902 · 4520002719902 · NIIN 002719902 · 00-271-9902 · FSC 4520 Space and Water Heating Equipment · CAGE 53711 · S3802-921624NM1 1-2 · MIL-H-3117C · NSTDSIZE1-1-2 · NSTDSIZE1-1-2 · S3802-921624
Nearby stock numbers  ·
Features
  • Heater,convection,steam-Hot Wate — FSC 4520
  • Heat Delivery Rate: 1300.0 BRITISH THERMAL UNIT
  • Heat Medium Type: HOT WATER OR STEAM
  • Inclosure Material: STEEL
  • Heat Outlet Quantity: 1
  • Heat Discharge Outlet Type: STATIONARY
  • Heat Delivery Direction: VERTICAL
  • Height: 20.000 INCHES NOMINAL IN
Identification
  • NSN: 4520-00-271-9902
  • NIIN: 002719902
  • FSC: 4520 — Space and Water Heating Equipment
  • FSG: 45 — Plumbing, Heating, and Waste Disposal
  • Primary part number: S3802-921624NM1 1-2
  • Manufacturer: Naval Sea Systems Command
General Description

The Heater,convection,steam-Hot Wate, cataloged under National Stock Number 4520-00-271-9902, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 11 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-00-271-9902
Primary Part NumberS3802-921624NM1 1-2
Item NameHeater,convection,steam-Hot Wate
FSC / FSG4520 / 45 — Space and Water Heating Equipment
ManufacturerNaval Sea Systems Command
StatusACTIVE
Heat Delivery Rate1300.0 BRITISH THERMAL UNIT
Heat Medium TypeHOT WATER OR STEAM
Inclosure MaterialSTEEL
Heat Outlet Quantity1
Heat Discharge Outlet TypeSTATIONARY
Heat Delivery DirectionVERTICAL
Height20.000 INCHES NOMINAL IN
Maximum Pressure Limit35.0 POUNDS PER SQUARE INCH GAGE LBS
Depth4.000 INCHES NOMINAL IN
Width9.000 INCHES NOMINAL IN
Heat Directing DeviceFIXED LOUVER
Mounting TypeWALL SUSPENDED, ROOM INTERIOR
Heating Element TypeHOT WATER COIL AND STEAM COIL
Operating Control TypeTHERMOSTATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 11
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4520-00-273-1126S3802-921624-6 POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
Possible match (shared part number)Naval Ship Systems Command
4520-00-273-1128S3802-921624NM8 POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
Possible match (shared part number)Naval Sea Systems Command
4520-00-273-1129 POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
Possible match (shared part number)
4520-00-273-1132S3802-921624-6NM POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
Possible match (shared part number)Naval Ship Systems Command
4520-00-273-1149 POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
Possible match (shared part number)
4520-00-273-1150S3802-921624NM4 1-2 POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
Possible match (shared part number)Naval Sea Systems Command
4520-00-273-11516329453 POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
Possible match (shared part number)Dunham-Bush, Inc. Dba Dunham-Bush Inc Commercial & Industrial
4520-00-273-1152 POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
Possible match (shared part number)
4520-00-273-1153S3802-921624 POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
Possible match (shared part number)Naval Ship Systems Command
4520-00-288-7111S3802-921624-2 1-2NM POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
Possible match (shared part number)Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
S3802-921624NM1 1-2 Naval Sea Systems Command (USA)
Reference documents
ReferenceMeaning
MIL-H-3117C 5/9 Secondary reference
U.S. Government activity
NSTDSIZE1-1-2 3/9 Design control — primary reference
Modine Mfg Co
NSTDSIZE1-1-2 C/1 Advisory reference — outside the item-of-supply concept
Modine Manufacturing Co
S3802-921624 D/9 Drawing number reference only
U.S. Government activity
MIL-H-3117 4/1 Identification reference
U.S. Government activity
Related Parts
4520-00-273-1126POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
S3802-921624-6
4520-00-273-1128POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
S3802-921624NM8
4520-00-273-1129POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
4520-00-273-1132POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
S3802-921624-6NM
4520-00-273-1149POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
4520-00-273-1150POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
S3802-921624NM4 1-2
4520-00-273-1151POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
6329453
4520-00-273-1152POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
4520-00-273-1153POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
S3802-921624
4520-00-288-7111POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
S3802-921624-2 1-2NM
4520-00-289-3926POSSIBLE MATCH
HEATER,CONVECTION,STEAM-HOT WATE
S3802-921624-2NM

Frequently Asked Questions

What is NSN 4520-00-271-9902?

NSN 4520-00-271-9902 is a Heater,convection,steam-Hot Wate, manufactured by Naval Sea Systems Command, classified under FSC 4520, Space and Water Heating Equipment. Status: active.

What part numbers are listed for NSN 4520-00-271-9902?

NSN 4520-00-271-9902 has 1 manufacturer part number on file: S3802-921624NM1 1-2 (Naval Sea Systems Command).

What NSN replaces 4520-00-271-9902?

11 possible matches (shared part number, not a government interchangeability claim): 4520-00-273-1126, 4520-00-273-1128, 4520-00-273-1129. Verify interchangeability with system specifications before substitution.

What are the specifications of S3802-921624NM1 1-2?

Key specifications for S3802-921624NM1 1-2: Heat Delivery Rate: 1300.0 BRITISH THERMAL UNIT; Heat Medium Type: HOT WATER OR STEAM; Inclosure Material: STEEL; Heat Outlet Quantity: 1. 14 specifications are documented in the U.S. Government catalog.

Is NSN 4520-00-271-9902 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

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✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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