The Spacer,compressor Rotor,aircraft, cataloged under National Stock Number 2840-01-145-3802, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-145-3802 |
| Primary Part Number | 539506 |
| Item Name | Spacer,compressor Rotor,aircraft |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Outside Diameter | 15.445 INCHES MINIMUM AND 15.455 INCHES MAXIMUM IN |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 539506 | Ambel Precision Manufacturing Corporation (USA) |
| 539506 | Beacon Industries, Inc. Dba Beacon Technology Co (USA) |
| 539506 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 539506 | Rtx Corporation Div Pratt & Whitney (USA) |
| 539506 | Electro-Methods, L.p. (USA) |
| Reference | Meaning |
|---|---|
| 539506 | 5/9 Secondary reference Mtu Aero Engine Components Inc |
| 539506 | 5/9 Secondary reference Machine Products Co Inc |
| 539506 | C/1 Advisory reference — outside the item-of-supply concept Hanwha Aerospace Usa Llc |
NSN 2840-01-145-3802 is a Spacer,compressor Rotor,aircraft, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-01-145-3802 has 5 manufacturer part numbers on file: 539506 (Ambel Precision Manufacturing Corporation), 539506 (Beacon Industries, Inc. Dba Beacon Technology Co), 539506 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 539506 (Rtx Corporation Div Pratt & Whitney), 539506 (Electro-Methods, L.p.).
Key specifications for 539506: Criticality Code Justification: AGAV; Overall Length: 7.358 INCHES NOMINAL IN; Outside Diameter: 15.445 INCHES MINIMUM AND 15.455 INCHES MAXIMUM IN; End Item Identification: ACFT ENG TF33. 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.
NSN 2840-01-145-3802 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.