The Link,roller Chain, cataloged under National Stock Number 3020-00-528-0602, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Timken Co Div the Timken Company. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Link,roller Chain |
| FSC / FSG | 3020 — Gears, Pulleys, Sprockets, and Transmission Chain (FSG 30) |
| Manufacturers | Timken Co Div the Timken Company (CAGE 21335) |
| Parameter | Value |
|---|---|
| NSN | 3020-00-528-0602 |
| Primary Part Number | DMD-50S-1 SC CO LINK P;D7051-AC |
| Item Name | Link,roller Chain |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Timken Co Div the Timken Company |
| Status | ACTIVE |
| 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 |
|---|---|
| DMD-50S-1 SC CO LINK P;D7051-AC PRIMARY | Timken Co Div the Timken Company (USA) |
| Reference | Meaning |
|---|---|
| 101960437 | 5/9 Secondary reference Timken Aerospace, Inc Dba Torrington Product |
| 201638393 | 5/9 Secondary reference Timken Aerospace, Inc Dba Torrington Product |
| SX883 | 5/9 Secondary reference Diamond Chain Co Div of Amsted Industries Inc |
| 101962249 | 5/9 Secondary reference Timken Co Div the Timken Company |
| C451054 | 5/9 Secondary reference Diamond Chain Co Div of Amsted Industries Inc |
NSN 3020-00-528-0602 is a Link,roller Chain, manufactured by Timken Co Div the Timken Company, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-528-0602 has 1 manufacturer part number on file: DMD-50S-1 SC CO LINK P;D7051-AC (Timken Co Div the Timken Company).
1 possible match (shared part number, not a government interchangeability claim): 4730-00-989-3260. Verify interchangeability with system specifications before substitution.
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.