The Chain,roller, cataloged under National Stock Number 3020-00-019-7809, 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 Caterpillar Inc Div Caterpillar Defense. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-019-7809 |
| Primary Part Number | 8H9749 |
| Item Name | Chain,roller |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Second Chain Link Pin Nominal Diameter | 0.1400 INCHES IN |
| Second Chain Link Plate Nominal Thickness | 0.0500 INCHES IN |
| First Chain Link Roller Nominal Diameter | 0.2000 INCHES IN |
| Pin Overall Length | 0.4650 INCHES NOMINAL IN |
| Second Chain Link Style | PIN |
| Effective Length | 1.5313 FEET NOMINAL FT |
| Second Chain Link Nominal Width Between Plates | 0.3000 INCHES IN |
| First Chain Link Style | ROLLER |
| Features Provided | ENDLESS CHAIN |
| First Chain Link Plate Width | 0.360 INCHES NOMINAL IN |
| Pin Fastening Method | SPRING TENSION |
| Second Chain Link Plate Width | 0.3000 INCHES NOMINAL IN |
| First Chain Link Nominal Width Between Plates | 0.1900 INCHES IN |
| Link Row Quantity | 1 |
| Material | STEEL |
| First Chain Link Plate Nominal Thickness | 0.0500 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 |
|---|---|
| 8H9749 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 3020-00-019-7809 is a Chain,roller, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-019-7809 has 1 manufacturer part number on file: 8H9749 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 8H9749: Second Chain Link Pin Nominal Diameter: 0.1400 INCHES IN; Second Chain Link Plate Nominal Thickness: 0.0500 INCHES IN; First Chain Link Roller Nominal Diameter: 0.2000 INCHES IN; Pin Overall Length: 0.4650 INCHES NOMINAL IN. 16 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.