The Variable Exhaust No, cataloged under National Stock Number 2840-01-388-0169, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-388-0169 |
| Item Name | Variable Exhaust No |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Status | ACTIVE |
| General Characteristics Item Description | VARIABLE EXHAUST NOZZLE ACTUATOR ARM CASTING IS FABRICATED FROM B50T46A AND A SURFACE FINISH OF 125. ONE END OF THE ARM IS 0.440 INCH MIN. TO 0.480 INCH MAX. WIDE AND 0.530 INCH TO 0.550 INCH MAX. LONG. THE THINNER END OF THE ARM IS 0.060 INCH MIN. TO 0.080 INCH MAX. THE TOTAL ARM LENGTH IS 1.150 INCH MIN. TO 1.170 INCH MAX. LONG. ARM HAS A 0.192 INCH. TO 0.196 INCH MAX. THROUGH HOLE.ARM HAS A 0.170 INCH MIN. TO 0.210 INCH MAX RADIUS. ARM IS USED ON THE J85-GE-5J AIRCRAFT IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 4903T43P02 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2840-01-388-0169 is a Variable Exhaust No, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
Key specifications for 2840-01-388-0169: General Characteristics Item Description: VARIABLE EXHAUST NOZZLE ACTUATOR ARM CASTING IS FABRICATED FROM B50T46A AND A SURFACE FINISH OF 125. ONE END OF THE ARM IS 0.440 INCH MIN. TO 0.480 INCH MAX. WIDE AND 0.530 INCH TO 0.550 INCH MAX. LONG. THE THINNER END OF THE ARM IS 0.060 INCH MIN. TO 0.080 INCH MAX. THE TOTAL ARM LENGTH IS 1.150 INCH MIN. TO 1.170 INCH MAX. LONG. ARM HAS A 0.192 INCH. TO 0.196 INCH MAX. THROUGH HOLE.ARM HAS A 0.170 INCH MIN. TO 0.210 INCH MAX RADIUS. ARM IS USED ON THE J85-GE-5J AIRCRAFT IN. 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 2840-01-388-0169 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.