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NSN 4420-00-129-6500Government record, cited

Mount, Heat Exchange4420-00-129-6500

NSN 4420-00-129-6500 · NIIN 001296500 · Part number CS653A3
Sje Inc. Dba San Juan Engineering & Mfg Co · FSC 4420 — Heat Exchangers and Steam Condensers · FSG 44 — Furnace, Steam, Drying, Nuclear Reactors · CAGE 25658
Government record, cited
NSN 4420-00-129-6500 — this item is cataloged by the U.S. Government under National Stock Number 4420-00-129-6500. Manufacturer of record part number: CS653A3.
Also searched as  4420-00-129-6500 · 4420001296500 · NIIN 001296500 · 00-129-6500 · FSC 4420 Heat Exchangers and Steam Condensers · CAGE 25658 · CS653A3
Nearby stock numbers  ·
Features
  • Mount,heat Exchange — FSC 4420
  • 1 manufacturer part number on file
  • Manufacturer of record: Sje Inc. Dba San Juan Engineering & Mfg Co
Identification
  • NSN: 4420-00-129-6500
  • NIIN: 001296500
  • FSC: 4420 — Heat Exchangers and Steam Condensers
  • FSG: 44 — Furnace, Steam, Drying, Nuclear Reactors
  • Primary part number: CS653A3
  • Manufacturer: Sje Inc. Dba San Juan Engineering & Mfg Co
General Description

The Mount,heat Exchange, cataloged under National Stock Number 4420-00-129-6500, 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 Sje Inc. Dba San Juan Engineering & Mfg Co. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts
Item NameMount,heat Exchange
FSC / FSG4420 — Heat Exchangers and Steam Condensers (FSG 44)
ManufacturersSje Inc. Dba San Juan Engineering & Mfg Co (CAGE 25658)
Technical Specifications
ParameterValue
NSN4420-00-129-6500
Primary Part NumberCS653A3
Item NameMount,heat Exchange
FSC / FSG4420 / 44 — Heat Exchangers and Steam Condensers
ManufacturerSje Inc. Dba San Juan Engineering & Mfg Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Cross-Reference Index
Part NumberManufacturer
CS653A3 PRIMARY Sje Inc. Dba San Juan Engineering & Mfg Co (USA)
Reference documents
ReferenceMeaning
CS653A3 5/9 Secondary reference
Inland Power Group, Inc. Dba Inland Detroit Diesel Allison
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 4420-00-129-6500?

NSN 4420-00-129-6500 is a Mount,heat Exchange, manufactured by Sje Inc. Dba San Juan Engineering & Mfg Co, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.

What part numbers are listed for NSN 4420-00-129-6500?

NSN 4420-00-129-6500 has 1 manufacturer part number on file: CS653A3 (Sje Inc. Dba San Juan Engineering & Mfg Co).

Is NSN 4420-00-129-6500 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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