The Radiator,engine Coolant, cataloged under National Stock Number 2930-00-491-3258, is classified within Federal Supply Class 2930 (Engine Cooling System Components, Nonaircraft) of the Engine Accessories group. Government technical data includes 26 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2930-00-491-3258 |
| Item Name | Radiator,engine Coolant |
| FSC / FSG | 2930 / 29 — Engine Cooling System Components, Nonaircraft |
| Status | ACTIVE |
| Tank Height | 4.000 INCHES NOMINAL 2D TANK UPPER IN |
| Tank Height | 1.900 INCHES NOMINAL FIRST TANK LOWER IN |
| Core Width | 23.120 INCHES NOMINAL IN |
| Inlet Connection End Type | PLAIN |
| Filler Neck | INCLUDED |
| Core Height | 24.300 INCHES NOMINAL IN |
| Tank Quantity | 1 FIRST TANK LOWER |
| Tank Quantity | 1 2D TANK UPPER |
| Mounting Method | FLANGE SIDE |
| Outlet Connection End Quantity | 2 |
| Overall Thickness | 3.690 INCHES NOMINAL IN |
| Tank Thickness | 3.690 INCHES NOMINAL 2D TANK UPPER IN |
| Tank Thickness | 3.690 INCHES NOMINAL FIRST TANK LOWER IN |
| Inlet Connection End Shape | ROUND |
| Inlet Connection End Quantity | 1 |
| Tank Location | LOWER FIRST TANK LOWER |
| Tank Location | UPPER 2D TANK UPPER |
| Mounting Feature | INCLUDED |
| Valve Casing | NOT INCLUDED |
| Fan Shroud | INCLUDED |
| Coolant Level Elbow Check Valve | NOT INCLUDED |
| Filler Neck Quantity | 1 |
| Outlet Connection End Shape | OVAL |
| Core Thickness | 2.880 INCHES NOMINAL IN |
| Core Quantity | 1 |
| Outlet End Connection Type | FLANGED |
| 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 |
|---|---|
| DA-481900 | 3/9 Design control — primary reference Behr Heat Transfer Systems Inc |
| 401867 | 5/9 Secondary reference U.S. Government activity |
NSN 2930-00-491-3258 is a Radiator,engine Coolant, classified under FSC 2930, Engine Cooling System Components, Nonaircraft. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5998-01-721-1295. Verify interchangeability with system specifications before substitution.
Key specifications for 2930-00-491-3258: Tank Height: 4.000 INCHES NOMINAL 2D TANK UPPER IN; Tank Height: 1.900 INCHES NOMINAL FIRST TANK LOWER IN; Overall Height: 30.200 INCHES NOMINAL IN; Core Width: 23.120 INCHES NOMINAL IN. 26 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.