NSN 4420-01-173-9354 — this item is cataloged by the U.S. Government under National Stock Number 4420-01-173-9354. Manufacturer of record part number: 5R4255.
Also searched as4420-01-173-9354 ·
4420011739354 ·
NIIN 011739354 ·
01-173-9354 ·
FSC 4420 Heat Exchangers and Steam Condensers · CAGE 11083 · 5R4255
Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description
The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-173-9354, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 9 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4420-01-173-9354
Primary Part Number
5R4255
Item Name
Cooler,fluid,industrial
FSC / FSG
4420 / 44 — Heat Exchangers and Steam Condensers
Manufacturer
Caterpillar Inc Div Caterpillar Defense
Status
ACTIVE
Heat Transfer Method
INDIRECT
Length
0.739 INCHES NOMINAL IN
Effective Heat Transfer Surface Area
20.0 SQUARE FEET
Style Designator
STRAIGHT PLAIN TUBE CYLINDRICAL
Diameter
6.125 INCHES NOMINAL IN
Tube Quantity
112
Tubing Outside Diameter
0.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
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 4420-01-173-9354?
NSN 4420-01-173-9354 is a Cooler,fluid,industrial, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
What part numbers are listed for NSN 4420-01-173-9354?
NSN 4420-01-173-9354 has 1 manufacturer part number on file: 5R4255 (Caterpillar Inc Div Caterpillar Defense).
What are the specifications of 5R4255?
Key specifications for 5R4255: Heat Transfer Method: INDIRECT; Length: 0.739 INCHES NOMINAL IN; Effective Heat Transfer Surface Area: 20.0 SQUARE FEET; Style Designator: STRAIGHT PLAIN TUBE CYLINDRICAL. 9 specifications are documented in the U.S. Government catalog.
Is NSN 4420-01-173-9354 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.