The Dual Breakaway,aux, cataloged under National Stock Number 1680-01-587-6928, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Dual Breakaway,aux |
| FSC / FSG | 1680 — Miscellaneous Aircraft Accessories and Components (FSG 16) |
| Manufacturers | Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit (CAGE 11362); Mid-State Aerospace Inc Dba Mid-State Aerospace Inc (CAGE 4W876); Ulster Scientific Inc Dba American Scientific Resources, Inc. (CAGE 63784) |
| Parameter | Value |
|---|---|
| NSN | 1680-01-587-6928 |
| Primary Part Number | 21901-939 |
| Item Name | Dual Breakaway,aux |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | V |
| Part Number | Manufacturer |
|---|---|
| 21901-939 PRIMARY | Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit (USA) |
| 21901-939 | Mid-State Aerospace Inc Dba Mid-State Aerospace Inc (USA) |
| 21901-939 PRIMARY | Ulster Scientific Inc Dba American Scientific Resources, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 21901-939 | 5/1 Secondary reference Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations |
NSN 1680-01-587-6928 is a Dual Breakaway,aux, manufactured by Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-587-6928 has 3 manufacturer part numbers on file: 21901-939 (Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit), 21901-939 (Mid-State Aerospace Inc Dba Mid-State Aerospace Inc), 21901-939 (Ulster Scientific Inc Dba American Scientific Resources, Inc.).
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 1680-01-587-6928 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.