The Shroud,turbine Whee, cataloged under National Stock Number 2950-01-111-3964, is classified within Federal Supply Class 2950 (Turbosupercharger and Components) of the Engine Accessories group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 2950-01-111-3964 |
| Primary Part Number | 4N9556 |
| Item Name | Shroud,turbine Whee |
| FSC / FSG | 2950 / 29 — Turbosupercharger and Components |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| General Characteristics Item Description | OVERALL DIAMETER APPROXIMATELY 117.35MM;OVERALL HEIGHT APPROXIMATELY 12.49MM MM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 49162-13101 | Mitsubishi Heavy Industries, Ltd. (JPN) |
| 159535 | Schwitzer Engine Components a Household Intl Co (USA) |
| 4N9556 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 148046 | 5/9 Secondary reference Schwitzer Engine Components a Household Intl Co |
| 49162-13101 | 5/9 Secondary reference Mitsubishi Heavy Industries Ltd Engine Division |
| 188086 | 5/9 Secondary reference Schwitzer Engine Components a Household Intl Co |
NSN 2950-01-111-3964 is a Shroud,turbine Whee, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2950, Turbosupercharger and Components. Status: active.
NSN 2950-01-111-3964 has 3 manufacturer part numbers on file: 49162-13101 (Mitsubishi Heavy Industries, Ltd.), 159535 (Schwitzer Engine Components a Household Intl Co), 4N9556 (Caterpillar Inc Div Caterpillar Defense).
3 possible matches (shared part number, not a government interchangeability claim): 6680-01-206-6481, 7530-01-611-4158, 5905-01-648-4383. Verify interchangeability with system specifications before substitution.
Key specifications for 4N9556: General Characteristics Item Description: OVERALL DIAMETER APPROXIMATELY 117.35MM;OVERALL HEIGHT APPROXIMATELY 12.49MM MM; End Item Identification: 2410-01-253-2118,MODEL D7GRC;2410-01-253-2117,MODEL D7GWC;2410-01-223-0350,MODEL D7RIP;2410-01-223-7261,MODEL D7WIN. 1 specification is 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.