The Ring,constant Speed Drive, cataloged under National Stock Number 1650-01-178-0384, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Jaco Engineering. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-178-0384 |
| Primary Part Number | 702414 |
| Item Name | Ring,constant Speed Drive |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Jaco Engineering |
| Status | ACTIVE |
| FSC Application Data | AIRCRAFT HYDRAULIC SYSTEM |
| General Characteristics Item Description | MATERIAL IS CHROMIUM STEEL,HIGH CARBON 52100,PER MIL-S-7420,COND E,AMS 6440,AISI E52100,MAGNAFLUX QUALITY;100PERCENT SPHERODIZE ANNEALED;OUTSIDE DIAMETER IS 0.589 IN. MIN AND 0.599 IN. MAX;INSIDE DIAMETER IS 0.192 IN. MIN AND 0.198 IN. MAX IN |
| 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 |
|---|---|
| 702414 | Jaco Engineering (USA) |
| Reference | Meaning |
|---|---|
| 702414 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1650-01-178-0384 is a Ring,constant Speed Drive, manufactured by Jaco Engineering, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-178-0384 has 1 manufacturer part number on file: 702414 (Jaco Engineering).
Key specifications for 702414: FSC Application Data: AIRCRAFT HYDRAULIC SYSTEM; General Characteristics Item Description: MATERIAL IS CHROMIUM STEEL,HIGH CARBON 52100,PER MIL-S-7420,COND E,AMS 6440,AISI E52100,MAGNAFLUX QUALITY;100PERCENT SPHERODIZE ANNEALED;OUTSIDE DIAMETER IS 0.589 IN. MIN AND 0.599 IN. MAX;INSIDE DIAMETER IS 0.192 IN. MIN AND 0.198 IN. MAX IN; End Item Identification: 1650011360549. 2 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 1650-01-178-0384 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.