PartsTable TECHNICAL DATA SHEET
NSN 4420-01-709-0153Government record, cited

Bonnet, Fluid Cooler, Industrial4420-01-709-0153

NSN 4420-01-709-0153 · NIIN 017090153 · Part number 577-4343
Caterpillar Inc Div Caterpillar Defense · FSC 4420 — Heat Exchangers and Steam Condensers · FSG 44 — Furnace, Steam, Drying, Nuclear Reactors · CAGE 11083
Government record, cited
NSN 4420-01-709-0153 — this item is cataloged by the U.S. Government under National Stock Number 4420-01-709-0153. Manufacturer of record part number: 577-4343.
Also searched as  4420-01-709-0153 · 4420017090153 · NIIN 017090153 · 01-709-0153 · FSC 4420 Heat Exchangers and Steam Condensers · CAGE 11083 · 577-4343
Nearby stock numbers  ·
Features
  • Bonnet,fluid Cooler,industrial — FSC 4420
  • 1 manufacturer part number on file
  • Manufacturer of record: Caterpillar Inc Div Caterpillar Defense
Identification
  • NSN: 4420-01-709-0153
  • NIIN: 017090153
  • FSC: 4420 — Heat Exchangers and Steam Condensers
  • FSG: 44 — Furnace, Steam, Drying, Nuclear Reactors
  • Primary part number: 577-4343
  • Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description

The Bonnet,fluid Cooler,industrial, cataloged under National Stock Number 4420-01-709-0153, 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. 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
ParameterValue
NSN4420-01-709-0153
Primary Part Number577-4343
Item NameBonnet,fluid Cooler,industrial
FSC / FSG4420 / 44 — Heat Exchangers and Steam Condensers
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
577-4343 PRIMARY Caterpillar Inc Div Caterpillar Defense (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 4420-01-709-0153?

NSN 4420-01-709-0153 is a Bonnet,fluid Cooler,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 4420-01-709-0153?

NSN 4420-01-709-0153 has 1 manufacturer part number on file: 577-4343 (Caterpillar Inc Div Caterpillar Defense).

What are the specifications of 577-4343?

Key specifications for 577-4343: Part Name Assigned by Controlling Agency: BONNET RETURN. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4420-01-709-0153 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.
PartsTable Design LLC · partstable.com