The Link,roller Chain, cataloged under National Stock Number 3020-01-198-2873, 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 Diamond Chain Co Div of Amsted Industries Inc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 3020-01-198-2873 |
| Primary Part Number | 20600L |
| Item Name | Link,roller Chain |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Diamond Chain Co Div of Amsted Industries Inc |
| Status | ACTIVE |
| Link Plate Nominal Thickness | 0.0940 INCHES IN |
| Link Plate Width at Pin End | 0.712 INCHES NOMINAL IN |
| Link Style | ROLLER, TAPERED EDGE |
| Link Plate Width at Bushing End | 0.712 INCHES NOMINAL IN |
| Link Pin Nominal Diameter | 0.2340 INCHES IN |
| Link Roller Nominal Diameter | 0.4690 INCHES IN |
| Nominal Pitch Distance | 1.500 INCHES IN |
| Link Row Quantity | 1 |
| Material | STEEL |
| Link Nominal Width Between Plates | 0.5000 INCHES 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 |
|---|---|
| 20600L PRIMARY | Diamond Chain Co Div of Amsted Industries Inc (USA) |
| 20600L | Altra Industrial Motion Corp. (USA) |
| Reference | Meaning |
|---|---|
| X87600 ITEM 1-2 | D/9 Drawing number reference only U.S. Government activity |
| 20600L | 5/9 Secondary reference Emerson Power Transmission Corporation Div Ept |
| 73894 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-01-198-2873 is a Link,roller Chain, manufactured by Diamond Chain Co Div of Amsted Industries Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-198-2873 has 2 manufacturer part numbers on file: 20600L (Diamond Chain Co Div of Amsted Industries Inc), 20600L (Altra Industrial Motion Corp.).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-693-5124. Verify interchangeability with system specifications before substitution.
Key specifications for 20600L: Link Plate Nominal Thickness: 0.0940 INCHES IN; Link Plate Width at Pin End: 0.712 INCHES NOMINAL IN; Link Style: ROLLER, TAPERED EDGE; Link Plate Width at Bushing End: 0.712 INCHES NOMINAL IN. 10 specifications are 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.