NSN 4420-01-644-3647 · NIIN 016443647 · Part number 1270-01-0064
National Oilwell Varco Inc Dba National Oilwell · FSC 4420 — Heat Exchangers and Steam Condensers · FSG 44 — Furnace, Steam, Drying, Nuclear Reactors · CAGE 52142
Government record, cited
NSN 4420-01-644-3647 — this item is cataloged by the U.S. Government under National Stock Number 4420-01-644-3647. Manufacturer of record part number: 1270-01-0064.
Also searched as4420-01-644-3647 ·
4420016443647 ·
NIIN 016443647 ·
01-644-3647 ·
FSC 4420 Heat Exchangers and Steam Condensers · CAGE 52142 · 1270-01-0064
Manufacturer: National Oilwell Varco Inc Dba National Oilwell
General Description
The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-644-3647, 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 National Oilwell Varco Inc Dba National Oilwell. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Catalog Facts
Item Name
Cooler,fluid,industrial
FSC / FSG
4420 — Heat Exchangers and Steam Condensers (FSG 44)
Manufacturers
National Oilwell Varco Inc Dba National Oilwell (CAGE 52142)
National Oilwell Varco Inc Dba National Oilwell (USA)
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 4420-01-644-3647?
NSN 4420-01-644-3647 is a Cooler,fluid,industrial, manufactured by National Oilwell Varco Inc Dba National Oilwell, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
What part numbers are listed for NSN 4420-01-644-3647?
NSN 4420-01-644-3647 has 1 manufacturer part number on file: 1270-01-0064 (National Oilwell Varco Inc Dba National Oilwell).
Is NSN 4420-01-644-3647 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.