The Drive Shaft Assembly,constant Ve, cataloged under National Stock Number 2520-01-678-1690, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Flyer Defense, Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-01-678-1690 |
| Primary Part Number | SPAL4020772 |
| Item Name | Drive Shaft Assembly,constant Ve |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Flyer Defense, Llc |
| Status | ACTIVE |
| Mounting Position | REAR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SPAL4020772 PRIMARY | Flyer Defense, Llc (USA) |
| Reference | Meaning |
|---|---|
| SPAL3120161 | 5/9 Secondary reference General Dynamics Ordnance and Tactical Systems, Inc. |
| SPAL3120161 | 3/9 Design control — primary reference Flyer Defense, Llc |
NSN 2520-01-678-1690 is a Drive Shaft Assembly,constant Ve, manufactured by Flyer Defense, Llc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-678-1690 has 1 manufacturer part number on file: SPAL4020772 (Flyer Defense, Llc).
Key specifications for SPAL4020772: Overall Height: 112.83 MILLIMETERS NOMINAL MM; Mounting Position: REAR; Overall Length: 237.5 MILLIMETERS NOMINAL MM; Overall Width: 112.8 MILLIMETERS NOMINAL MM. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.