The Coupling Assy, cataloged under National Stock Number 2840-00-150-7339, 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. The record lists 7 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Coupling Assy |
| FSC / FSG | 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components (FSG 28) |
| Manufacturers | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445); Lewis Machine, Llc (CAGE 3V183); Royson Engineering Company (CAGE 02154); 2m Machining and Manufacturing Co Inc (CAGE 6Y604); J.f. Fredericks Aero Llc Dba J F Fredericks Aero Llc Div J F Frederics Aero Llc (CAGE 33575) |
| Parameter | Value |
|---|---|
| NSN | 2840-00-150-7339 |
| Primary Part Number | 668135 |
| Item Name | Coupling Assy |
| 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 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 668135 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 668135 | Lewis Machine, Llc (USA) |
| 668135 | Royson Engineering Company (USA) |
| 668135 | 2m Machining and Manufacturing Co Inc (USA) |
| 668135 | J.f. Fredericks Aero Llc Dba J F Fredericks Aero Llc Div J F Frederics Aero Llc (USA) |
| 668135 | Aircraft Components and Fasteners Inc (USA) |
| 668135 | Wynnson Enterprises, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 668135 | 5/9 Secondary reference Automix Keyboards Inc |
| 668135 | 5/9 Secondary reference U.S. Government activity |
NSN 2840-00-150-7339 is a Coupling Assy, 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 2840-00-150-7339 has 7 manufacturer part numbers on file: 668135 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 668135 (Lewis Machine, Llc), 668135 (Royson Engineering Company), 668135 (2m Machining and Manufacturing Co Inc), 668135 (J.f. Fredericks Aero Llc Dba J F Fredericks Aero Llc Div J F Frederics Aero Llc) and 2 more.
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 2840-00-150-7339 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.