The Housing,di Train,co, cataloged under National Stock Number 4420-01-464-1716, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4420-01-464-1716 |
| Item Name | Housing,di Train,co |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Status | ACTIVE |
| Overall Diameter | 4.000 INCHES NOMINAL IN |
| Surface Treatment | NICKEL |
| Material | STEEL CORROSION RESISTING AND COPPER ALLOY |
| 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 |
|---|---|
| 17168 | 3/2 Design control — primary reference U.S. Government activity |
| 51100-10PC26 | D/9 Drawing number reference only U.S. Government activity |
NSN 4420-01-464-1716 is a Housing,di Train,co, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 2540-01-578-5408, 6515-01-588-9650. Verify interchangeability with system specifications before substitution.
Key specifications for 4420-01-464-1716: Overall Diameter: 4.000 INCHES NOMINAL IN; Overall Length: 6.000 INCHES NOMINAL IN; Special Features: DI TRAIN PARTICULATE FILTER HOUSEIN; Surface Treatment: NICKEL. 3 specifications are documented in the U.S. Government catalog.
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.