The Chain,roller, cataloged under National Stock Number 3020-01-474-7579, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-474-7579 |
| Item Name | Chain,roller |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Second Chain Link Pin Nominal Diameter | 0.3750 INCHES IN |
| Second Chain Link Plate Nominal Thickness | 0.1560 INCHES IN |
| First Chain Link Roller Nominal Diameter | 0.7500 INCHES IN |
| Pin Overall Length | 1.5937 INCHES NOMINAL IN |
| Second Chain Link Style | PIN |
| Second Chain Link Nominal Width Between Plates | 1.0620 INCHES IN |
| First Chain Link Style | ROLLER |
| Features Provided | CHAIN W/UNJOINED ENDS |
| Nominal Pitch Distance | 1.250 INCHES IN |
| First Chain Link Plate Width | 1.156 INCHES NOMINAL IN |
| Pin Fastening Method | RIVETED |
| Second Chain Link Plate Width | 1.1560 INCHES NOMINAL IN |
| Minimum Tensile Strength | 19530 POUNDS PER SQUARE INCH LBS |
| First Chain Link Nominal Width Between Plates | 0.7500 INCHES IN |
| Link Row Quantity | 1 |
| Material | STEEL |
| First Chain Link Plate Nominal Thickness | 0.1560 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 |
| Reference | Meaning |
|---|---|
| 100 RIV | 3/9 Design control — primary reference Rexnord Industries Inc. Div Roller Chain Operation |
| 100 RIVETTED | C/1 Advisory reference — outside the item-of-supply concept Rexnord Industries, Llc Div Aerosspace Bearing Operation |
NSN 3020-01-474-7579 is a Chain,roller, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-474-7579: Second Chain Link Pin Nominal Diameter: 0.3750 INCHES IN; Second Chain Link Plate Nominal Thickness: 0.1560 INCHES IN; First Chain Link Roller Nominal Diameter: 0.7500 INCHES IN; Pin Overall Length: 1.5937 INCHES NOMINAL IN. 17 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.