The Fiber Rope Assembly,single Leg, cataloged under National Stock Number 4020-01-463-7890, is classified within Federal Supply Class 4020 (Fiber Rope, Cordage, and Twine) of the Rope, Cable, Chain, and Fittings group. The manufacturer of record is Clamshell Structures, Inc. Government technical data includes 5 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4020-01-463-7890 |
| Primary Part Number | 50-3579 |
| Item Name | Fiber Rope Assembly,single Leg |
| FSC / FSG | 4020 / 40 — Fiber Rope, Cordage, and Twine |
| Manufacturer | Clamshell Structures, Inc |
| Status | ACTIVE |
| Inner Perimeter | 1.000 INCHES NOMINAL IN |
| Length | 160.000 INCHES NOMINAL IN |
| Circumference | 0.250 INCHES NOMINAL IN |
| Loop Retention Method | SPLICE |
| Material | FIBER ROPE |
| 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 |
|---|---|
| 50-3579 PRIMARY | Clamshell Structures, Inc (USA) |
NSN 4020-01-463-7890 is a Fiber Rope Assembly,single Leg, manufactured by Clamshell Structures, Inc, classified under FSC 4020, Fiber Rope, Cordage, and Twine. Status: active.
NSN 4020-01-463-7890 has 1 manufacturer part number on file: 50-3579 (Clamshell Structures, Inc).
Key specifications for 50-3579: Inner Perimeter: 1.000 INCHES NOMINAL IN; Length: 160.000 INCHES NOMINAL IN; Circumference: 0.250 INCHES NOMINAL IN; Loop Retention Method: SPLICE. 5 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.