The Chain,leaf, cataloged under National Stock Number 3020-01-171-4497, 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 Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling. Government technical data includes 11 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-171-4497 |
| Primary Part Number | 180137 |
| Item Name | Chain,leaf |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling |
| Status | ACTIVE |
| Link Plate Nominal Thickness | 0.0940 INCHES IN |
| Link Style | 4 X 6 |
| Link Nominal Width | 0.9400 INCHES IN |
| Link Pin Nominal Diameter | 0.2340 INCHES IN |
| Pin Overall Length | 1.0920 INCHES NOMINAL IN |
| Effective Length | 6.7188 FEET NOMINAL FT |
| Nominal Pitch Distance | 0.625 INCHES IN |
| Pin Fastening Method | COTTER PIN |
| Link Row Quantity | 1 |
| Material | STEEL |
| Link Plate Width | 0.594 INCHES NOMINAL 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 |
|---|---|
| 180137 PRIMARY | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA) |
| Reference | Meaning |
|---|---|
| 180137 | 5/9 Secondary reference Hyster-Yale Group, Inc. |
NSN 3020-01-171-4497 is a Chain,leaf, manufactured by Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-171-4497 has 1 manufacturer part number on file: 180137 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling).
1 possible match (shared part number, not a government interchangeability claim): 5985-01-258-5853. Verify interchangeability with system specifications before substitution.
Key specifications for 180137: Link Plate Nominal Thickness: 0.0940 INCHES IN; Link Style: 4 X 6; Link Nominal Width: 0.9400 INCHES IN; Link Pin Nominal Diameter: 0.2340 INCHES IN. 11 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.