The Chain,roller, cataloged under National Stock Number 3020-01-411-2127, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-411-2127 |
| Primary Part Number | 50X87 |
| 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 | 0.2000 INCHES IN |
| Second Chain Link Plate Nominal Thickness | 0.0800 INCHES IN |
| First Chain Link Roller Nominal Diameter | 0.4000 INCHES IN |
| Second Chain Link Style | PIN |
| Effective Length | 7.2500 FEET NOMINAL FT |
| Second Chain Link Nominal Width Between Plates | 0.5350 INCHES IN |
| First Chain Link Style | ROLLER |
| Nominal Pitch Distance | 0.625 INCHES IN |
| First Chain Link Plate Width | 0.590 INCHES NOMINAL IN |
| Second Chain Link Plate Width | 0.590 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 | 0.0800 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 |
|---|---|
| 50-87 IN.LG | Altra Industrial Motion Corp. (USA) |
| 50X87 PRIMARY | Mc Keon Rolling Steel Door Co Inc (USA) |
NSN 3020-01-411-2127 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 3020-01-411-2127 has 2 manufacturer part numbers on file: 50-87 IN.LG (Altra Industrial Motion Corp.), 50X87 (Mc Keon Rolling Steel Door Co Inc).
Key specifications for 50X87: Second Chain Link Pin Nominal Diameter: 0.2000 INCHES IN; Second Chain Link Plate Nominal Thickness: 0.0800 INCHES IN; First Chain Link Roller Nominal Diameter: 0.4000 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.