The Chain,roller, cataloged under National Stock Number 3020-00-904-3441, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-904-3441 |
| Item Name | Chain,roller |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Second Chain Link Plate Nominal Thickness | 0.0781 INCHES IN |
| Second Chain Link Bushing Nominal Outside Diameter | 0.2500 INCHES IN |
| Second Chain Link Style | ROLLERLESS |
| Effective Length | 2.2920 FEET NOMINAL FT |
| Second Chain Link Nominal Width Between Plates | 0.3750 INCHES IN |
| First Chain Link Style | PIN |
| First Chain Link Pin Nominal Diameter | 0.1880 INCHES IN |
| Nominal Pitch Distance | 0.625 INCHES IN |
| First Chain Link Plate Width | 0.563 INCHES NOMINAL IN |
| Pin Fastening Method | RIVETED |
| Second Chain Link Plate Width | 0.563 INCHES NOMINAL IN |
| First Chain Link Nominal Width Between Plates | 0.3750 INCHES IN |
| Link Row Quantity | 1 |
| Material | STEEL |
| First Chain Link Plate Nominal Thickness | 0.0781 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 |
|---|---|
| 680-111 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-904-3441 is a Chain,roller, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3040-01-374-9677. Verify interchangeability with system specifications before substitution.
Key specifications for 3020-00-904-3441: Second Chain Link Plate Nominal Thickness: 0.0781 INCHES IN; Second Chain Link Bushing Nominal Outside Diameter: 0.2500 INCHES IN; Second Chain Link Style: ROLLERLESS; Effective Length: 2.2920 FEET NOMINAL FT. 15 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.