The Manifold,exhaust, cataloged under National Stock Number 2815-01-121-0657, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-01-121-0657 |
| Primary Part Number | 1N5942 |
| Item Name | Manifold,exhaust |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Outlet Quantity | 1 |
| Inlet Quantity | 1 |
| Bolt Hole Diameter | 0.375 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN |
| Inlet Connection Type | FLANGED |
| Bolt Hole Quantity | 6 |
| Center to Center Distance Between Bolt Holes Along Length | 2.820 INCHES NOMINAL IN |
| Center to Center Distance Between Bolt Holes Along Width | 5.500 INCHES NOMINAL IN |
| Material | IRON CAST |
| Outlet End Connection Type | HOSE |
| Outlet Connection Outside Diameter | 3.500 INCHES NOMINAL IN |
| Temp Regulating Valve Opening | NOT INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1N5942 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 2815-01-121-0657 is a Manifold,exhaust, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-121-0657 has 1 manufacturer part number on file: 1N5942 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 1N5942: Outlet Quantity: 1; Inlet Quantity: 1; Bolt Hole Diameter: 0.375 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN; Inlet Connection Type: FLANGED. 11 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.
NSN 2815-01-121-0657 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.