The Carrier,planet Gear, cataloged under National Stock Number 1680-01-178-3464, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories 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1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1680-01-178-3464 |
| Item Name | Carrier,planet Gear |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL PER AMS6414,COMP 4340;HEAT TREAT ROCKWELL C40 MIN TO C45 MAX.;TRIANGLULAR SHAPE;0.865 IN. LG O/A BY 1.140 IN. HUB DIA BY 0.350 IN. THK;39 INTERNAL INVOLUTE SPLINE TEETH W/30.0 DEG PRESSURE ANGLE BY 0.9750 IN. PD BY 0.950 IN. MINOR DIA BY 1.020 IN. MAJOR DIA O/A IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 721661 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1680-01-178-3464 is a Carrier,planet Gear, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
Key specifications for 1680-01-178-3464: General Characteristics Item Description: STEEL PER AMS6414,COMP 4340;HEAT TREAT ROCKWELL C40 MIN TO C45 MAX.;TRIANGLULAR SHAPE;0.865 IN. LG O/A BY 1.140 IN. HUB DIA BY 0.350 IN. THK;39 INTERNAL INVOLUTE SPLINE TEETH W/30.0 DEG PRESSURE ANGLE BY 0.9750 IN. PD BY 0.950 IN. MINOR DIA BY 1.020 IN. MAJOR DIA O/A IN; End Item Identification: B-1B ACFT. 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 1680-01-178-3464 has DEMIL Code D. 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.