The Retainer,sprocket, cataloged under National Stock Number 1680-01-147-5568, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Cef Industries Inc Environ Div. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-01-147-5568 |
| Primary Part Number | 457B9 |
| Item Name | Retainer,sprocket |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Cef Industries Inc Environ Div |
| Status | ACTIVE |
| General Characteristics Item Description | MATL,STEEL MOLYBDENUM 4130; DIA 1.500 IN. BY 0.500; HEAT TR 150.000 MIN,175.000 MAX PSI IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 457B9 PRIMARY | Cef Industries Inc Environ Div (USA) |
| Reference | Meaning |
|---|---|
| 457B9 | 5/9 Secondary reference Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace |
NSN 1680-01-147-5568 is a Retainer,sprocket, manufactured by Cef Industries Inc Environ Div, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-147-5568 has 1 manufacturer part number on file: 457B9 (Cef Industries Inc Environ Div).
Key specifications for 457B9: General Characteristics Item Description: MATL,STEEL MOLYBDENUM 4130; DIA 1.500 IN. BY 0.500; HEAT TR 150.000 MIN,175.000 MAX PSI IN; End Item Identification: GEAR BOX,ACTUATOR. 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.
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.