The Impeller Wheel,aircraft Cooling, cataloged under National Stock Number 1660-00-925-4152, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Rolls-Royce Deutschland Ltd & Co Kg. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-00-925-4152 |
| Primary Part Number | 1-140-191-02 |
| Item Name | Impeller Wheel,aircraft Cooling |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Rolls-Royce Deutschland Ltd & Co Kg |
| Status | ACTIVE |
| Specification/standard Data | 91547-1-140-191-02 MANUFACTURERS SPECIFICATION CONTROL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1-140-191-02 | Rolls-Royce Deutschland Ltd & Co Kg (DEU) |
| Reference | Meaning |
|---|---|
| 1-140-191-02 | 3/9 Design control — primary reference U.S. Government activity |
| 1-140-191-02 | C/1 Advisory reference — outside the item-of-supply concept Ozark Aeroworks Llc |
NSN 1660-00-925-4152 is a Impeller Wheel,aircraft Cooling, manufactured by Rolls-Royce Deutschland Ltd & Co Kg, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-925-4152 has 1 manufacturer part number on file: 1-140-191-02 (Rolls-Royce Deutschland Ltd & Co Kg).
Key specifications for 1-140-191-02: Specification/standard Data: 91547-1-140-191-02 MANUFACTURERS SPECIFICATION CONTROL; Special Features: STEEL AMS 6382; ROCKWELL HARDNESS C 34.000-37.000; SURF TREAT AMS2481; HEAT TREAT SPEC P6000L2-3-4B; End Item Identification: T-53 SERIES ENGINES. 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.
NSN 1660-00-925-4152 has DEMIL Code Q. 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.