The Chain,roller, cataloged under National Stock Number 3020-01-424-4033, 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 Kornylak Corp. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-424-4033 |
| Primary Part Number | WXE1188 FIND NO. 11 |
| Item Name | Chain,roller |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Kornylak Corp |
| Status | ACTIVE |
| Second Chain Link Pin Nominal Diameter | 0.3120 INCHES IN |
| Second Chain Link Plate Nominal Thickness | 0.1250 INCHES IN |
| First Chain Link Roller Nominal Diameter | 0.6250 INCHES IN |
| Second Chain Link Style | PIN |
| Effective Length | 140.0000 INCHES NOMINAL IN |
| Second Chain Link Nominal Width Between Plates | 0.8750 INCHES IN |
| First Chain Link Style | ROLLER |
| First Chain Link Plate Width | 0.950 INCHES NOMINAL IN |
| Pin Fastening Method | COTTER PIN |
| Second Chain Link Plate Width | 0.8200 INCHES NOMINAL IN |
| First Chain Link Nominal Width Between Plates | 0.6250 INCHES IN |
| Link Row Quantity | 1 |
| Material | STEEL |
| First Chain Link Plate Nominal Thickness | 0.1250 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 |
|---|---|
| WXE1188 FIND NO. 11 PRIMARY | Kornylak Corp (USA) |
| 12511 PRIMARY | Emerson Power Transmission Corporation Div Ept (USA) |
| NO.80-140PITCHES | Diamond Chain Co Div of Amsted Industries Inc (USA) |
| NO.80-140PITCHES PRIMARY | Kornylak Corp (USA) |
| Reference | Meaning |
|---|---|
| NO.80-140PITCHES | 5/9 Secondary reference Emerson Power Transmission Corporation Div Ept |
| NO.80-140PITCHES | 5/9 Secondary reference Rexnord Industries Inc. Div Roller Chain Operation |
| WXE1188 | D/9 Drawing number reference only Kornylak Corp |
NSN 3020-01-424-4033 is a Chain,roller, manufactured by Kornylak Corp, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-424-4033 has 4 manufacturer part numbers on file: WXE1188 FIND NO. 11 (Kornylak Corp), 12511 (Emerson Power Transmission Corporation Div Ept), NO.80-140PITCHES (Diamond Chain Co Div of Amsted Industries Inc), NO.80-140PITCHES (Kornylak Corp).
1 possible match (shared part number, not a government interchangeability claim): 5962-01-425-8288. Verify interchangeability with system specifications before substitution.
Key specifications for WXE1188 FIND NO. 11: Second Chain Link Pin Nominal Diameter: 0.3120 INCHES IN; Second Chain Link Plate Nominal Thickness: 0.1250 INCHES IN; First Chain Link Roller Nominal Diameter: 0.6250 INCHES IN; Second Chain Link Style: PIN. 14 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.