The Synchronizer,transmission, cataloged under National Stock Number 2520-01-221-7726, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Dana Commercial Vehicle Products, Llc. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Synchronizer,transmission |
| FSC / FSG | 2520 — Vehicular Power Transmission Components (FSG 25) |
| Manufacturers | Dana Commercial Vehicle Products, Llc (CAGE 52304); Eaton Truck Components (CAGE K8879); Paccar Parts U.k. Limited (CAGE U0747); Link-Belt Cranes, L.p., Lllp (CAGE 2Y614) |
| Parameter | Value |
|---|---|
| NSN | 2520-01-221-7726 |
| Primary Part Number | A-4388 |
| Item Name | Synchronizer,transmission |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Dana Commercial Vehicle Products, Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| A-4388 PRIMARY | Dana Commercial Vehicle Products, Llc (USA) |
| A4388 | Eaton Truck Components (GBR) |
| Y028 521 02 | Paccar Parts U.k. Limited (GBR) |
| 3A6118 | Link-Belt Cranes, L.p., Lllp (USA) |
NSN 2520-01-221-7726 is a Synchronizer,transmission, manufactured by Dana Commercial Vehicle Products, Llc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-221-7726 has 4 manufacturer part numbers on file: A-4388 (Dana Commercial Vehicle Products, Llc), A4388 (Eaton Truck Components), Y028 521 02 (Paccar Parts U.k. Limited), 3A6118 (Link-Belt Cranes, L.p., Lllp).
2 possible matches (shared part number, not a government interchangeability claim): 6110-01-296-6047, 9535-01-304-2692. Verify interchangeability with system specifications before substitution.
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.