The Chain,roller, cataloged under National Stock Number 3020-01-411-2135, 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 Mc Keon Rolling Steel Door Co Inc. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-411-2135 |
| Primary Part Number | 48X49 |
| Item Name | Chain,roller |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Mc Keon Rolling Steel Door Co Inc |
| Status | ACTIVE |
| Second Chain Link Pin Nominal Diameter | 0.1410 INCHES IN |
| Second Chain Link Plate Nominal Thickness | 0.0500 INCHES IN |
| First Chain Link Roller Nominal Diameter | 0.3060 INCHES IN |
| Second Chain Link Style | PIN |
| Effective Length | 4.0833 FEET NOMINAL FT |
| Second Chain Link Nominal Width Between Plates | 0.2250 INCHES IN |
| First Chain Link Style | ROLLER |
| Nominal Pitch Distance | 0.500 INCHES IN |
| First Chain Link Plate Width | 0.390 INCHES NOMINAL IN |
| Second Chain Link Plate Width | 0.390 INCHES NOMINAL IN |
| First Chain Link Nominal Width Between Plates | 0.1250 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 |
|---|---|
| 48X49 PRIMARY | Mc Keon Rolling Steel Door Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 48-49 IN.LG | 5/9 Secondary reference Altra Industrial Motion Corp. |
NSN 3020-01-411-2135 is a Chain,roller, manufactured by Mc Keon Rolling Steel Door Co Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-411-2135 has 1 manufacturer part number on file: 48X49 (Mc Keon Rolling Steel Door Co Inc).
Key specifications for 48X49: Second Chain Link Pin Nominal Diameter: 0.1410 INCHES IN; Second Chain Link Plate Nominal Thickness: 0.0500 INCHES IN; First Chain Link Roller Nominal Diameter: 0.3060 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.