The Chain,roller, cataloged under National Stock Number 3020-00-243-7392, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-243-7392 |
| Item Name | Chain,roller |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Second Chain Link Pin Nominal Diameter | 0.5620 INCHES IN |
| Second Chain Link Plate Nominal Thickness | 0.2500 INCHES IN |
| First Chain Link Roller Nominal Diameter | 1.1250 INCHES IN |
| Second Chain Link Style | PIN |
| Effective Length | 10.0000 FEET NOMINAL FT |
| Second Chain Link Nominal Width Between Plates | 1.2500 INCHES IN |
| First Chain Link Style | ROLLER |
| Nominal Pitch Distance | 2.000 INCHES IN |
| First Chain Link Plate Width | 1.900 INCHES NOMINAL IN |
| Pin Fastening Method | COTTER PIN |
| Second Chain Link Plate Width | 1.640 INCHES NOMINAL IN |
| Minimum Tensile Strength | 5000 POUNDS PER SQUARE INCH LBS |
| First Chain Link Nominal Width Between Plates | 0.5000 INCHES IN |
| Link Row Quantity | 1 |
| Material | STEEL |
| First Chain Link Plate Nominal Thickness | 0.2500 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 |
|---|---|
| MS421CHAIN160-1RC | 4/1 Identification reference U.S. Government activity |
| TYPE478SINGLE | 5/9 Secondary reference Diamond Chain Co Div of Amsted Industries Inc |
| 44-293260 | 5/9 Secondary reference Lucas Western Inc |
NSN 3020-00-243-7392 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): 3020-00-243-7393. Verify interchangeability with system specifications before substitution.
Key specifications for 3020-00-243-7392: Second Chain Link Pin Nominal Diameter: 0.5620 INCHES IN; Second Chain Link Plate Nominal Thickness: 0.2500 INCHES IN; First Chain Link Roller Nominal Diameter: 1.1250 INCHES IN; Second Chain Link Style: PIN. 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.