The Coil Assembly,heat Exchanger, cataloged under National Stock Number 4420-01-134-9892, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Coil Assembly,heat Exchanger |
| FSC / FSG | 4420 — Heat Exchangers and Steam Condensers (FSG 44) |
| Parameter | Value |
|---|---|
| NSN | 4420-01-134-9892 |
| Item Name | Coil Assembly,heat Exchanger |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| N-820 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4420-01-134-9892 is a Coil Assembly,heat Exchanger, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4720-01-417-2382, 4820-01-514-5096. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.