Heater, Fluid, Industrial4420-01-277-6544

NSN 4420-01-277-6544 · NIIN 012776544

FSC 4420 — Heat Exchangers and Steam Condensers · FSG 44 — Furnace, Steam, Drying, Nuclear Reactors

Government record, cited

Also searched as 4420-01-277-6544 · 4420012776544 · NIIN 012776544 · 01-277-6544 · FSC 4420 Heat Exchangers and Steam Condensers · SD-A-015-69SW1B08-110421 · SD-A-015-69 · SW1B08-110421SD-A-015-69

Nearby stock numbers ← 4420-01-277-1712 Cooler, Fluid, Industrial · 4420-01-277-6545 →

Features

Heater,fluid,industrial — FSC 4420
Heat Transfer Method: INDIRECT
Length: 66.375 INCHES NOMINAL IN
Connection Type: FLANGED PIPE HEATED FLUID OUTLET
Style Designator: COILED PLAIN TYPE
Diameter: 17.000 INCHES NOMINAL IN
Tube Quantity: 8
Maximum Steam Working Pressure: ERR-060

Identification

NSN: 4420-01-277-6544
NIIN: 012776544
FSC: 4420 — Heat Exchangers and Steam Condensers
FSG: 44 — Furnace, Steam, Drying, Nuclear Reactors

General Description

The Heater,fluid,industrial, cataloged under National Stock Number 4420-01-277-6544, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4420-01-277-6544
Item Name	Heater,fluid,industrial
FSC / FSG	4420 / 44 — Heat Exchangers and Steam Condensers
Status	ACTIVE
Heat Transfer Method	INDIRECT
Length	66.375 INCHES NOMINAL IN
Connection Type	FLANGED PIPE HEATED FLUID OUTLET
Style Designator	COILED PLAIN TYPE
Diameter	17.000 INCHES NOMINAL IN
Tube Quantity	8
Maximum Steam Working Pressure	ERR-060

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
SD-A-015-69SW1B08-110421	3/2 Design control — primary reference U.S. Government activity
SD-A-015-69	D/9 Drawing number reference only U.S. Government activity
SW1B08-110421SD-A-015-69	5/2 Secondary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 4420 — Heat Exchangers and Steam Condensers

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4420-00-003-2812

CORE ASSEMBLY,FLUID HEATER,INDUS

4420-00-004-1071

4420-00-004-1071 · Item name not on file

4420-00-004-1072

4420-00-004-1072 · Item name not on file

4420-00-004-1073

4420-00-004-1073 · Item name not on file

4420-00-004-1074

4420-00-004-1074 · Item name not on file

4420-00-004-3860

COOLER,FLUID,INDUSTRIAL

4420-00-004-5260

4420-00-004-5260 · Item name not on file

4420-00-005-2335

PURGE ORIFICE ASSEMBLY

Frequently Asked Questions

What is NSN 4420-01-277-6544?

NSN 4420-01-277-6544 is a Heater,fluid,industrial, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.

What are the specifications of 4420-01-277-6544?

Key specifications for 4420-01-277-6544: Heat Transfer Method: INDIRECT; Length: 66.375 INCHES NOMINAL IN; Connection Type: FLANGED PIPE HEATED FLUID OUTLET; Style Designator: COILED PLAIN TYPE. 7 specifications are documented in the U.S. Government catalog.

Is NSN 4420-01-277-6544 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.

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

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