The Gear Assembly, cataloged under National Stock Number 1680-00-601-8057, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-00-601-8057 |
| Primary Part Number | 231C40 |
| Item Name | Gear Assembly |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace |
| Status | ACTIVE |
| General Characteristics Item Description | 5.250 IN. INSIDE DIA; 6 HOLES 0.173 IN. DIA EQUALLY SPACED; CONSISTS OF 1 RING GEAR P/N 231C6; 1 SUN GEAR P/N 231D8; 6 RIVETS P/N AN427-6C10 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 |
| Part Number | Manufacturer |
|---|---|
| 231C40 PRIMARY | Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA) |
NSN 1680-00-601-8057 is a Gear Assembly, manufactured by Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-00-601-8057 has 1 manufacturer part number on file: 231C40 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace).
Key specifications for 231C40: General Characteristics Item Description: 5.250 IN. INSIDE DIA; 6 HOLES 0.173 IN. DIA EQUALLY SPACED; CONSISTS OF 1 RING GEAR P/N 231C6; 1 SUN GEAR P/N 231D8; 6 RIVETS P/N AN427-6C10 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 1680-00-601-8057 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.