The Fiber Rope Assembly,single Leg, cataloged under National Stock Number 4020-01-032-3711, is classified within Federal Supply Class 4020 (Fiber Rope, Cordage, and Twine) of the Rope, Cable, Chain, and Fittings group. Government technical data includes 25 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4020-01-032-3711 |
| Item Name | Fiber Rope Assembly,single Leg |
| FSC / FSG | 4020 / 40 — Fiber Rope, Cordage, and Twine |
| Status | ACTIVE |
| Pin Diameter | 0.312 INCHES NOMINAL IN |
| Attachment Style | CONE SPRING HOOK ALL ATTACHMENTS |
| Thimble Inside Length | 2.000 INCHES NOMINAL IN |
| Length | 10.620 INCHES NOMINAL IN |
| Bearing Surface to Bearing Surface Distance | 1.125 INCHES NOMINAL IN |
| Thimble Style | OVAL |
| Surface Treatment Document and Classification | QQ-Z-325 FED STD 1ST TREATMENT RESPONSE |
| Strand Quantity | 3 |
| Inside Width Between Eyes | 0.469 INCHES NOMINAL IN |
| Material Document and Classification | MIL-R-24049, TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-R-24049, TYPE 2 MIL SPEC SINGLE MATERIAL RESPONSE ROPE |
| Material Document and Classification | MIL-T-5677,GR A MIL SPEC SINGLE MATERIAL RESPONSE THIMBLE |
| Material Document and Classification | RR-C-271,TY 4,CL 1 MIL SPEC SINGLE MATERIAL RESPONSE ALL ATTACHMENTS |
| Thimble Inside Width | 1.000 INCHES NOMINAL IN |
| Circumference | 1.178 INCHES NOMINAL IN |
| Breaking Strength | 2150.0 POUNDS MINIMUM LBS |
| Stock Diameter | 0.250 INCHES NOMINAL IN |
| Loop Retention Method | SPLICED/SERVED |
| Color | OLIVE DRAB, US ARMY, 7 |
| Surface Treatment | ZINC ALL ATTACHMENTS |
| Surface Treatment | CADMIUM OR ZINC THIMBLE |
| Material | STEEL ALL ATTACHMENTS |
| Material | PLASTIC POLYPROPYLENE ROPE |
| Material | STEEL THIMBLE |
| Fabrication Method | CABLE LAID |
| Rope Style | DOUBLE THIMBLE |
| 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 |
|---|---|
| 62825-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4020-01-032-3711 is a Fiber Rope Assembly,single Leg, classified under FSC 4020, Fiber Rope, Cordage, and Twine. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3740-01-141-2557. Verify interchangeability with system specifications before substitution.
Key specifications for 4020-01-032-3711: Pin Diameter: 0.312 INCHES NOMINAL IN; Attachment Style: CONE SPRING HOOK ALL ATTACHMENTS; Thimble Inside Length: 2.000 INCHES NOMINAL IN; Length: 10.620 INCHES NOMINAL IN. 25 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.