The Roundline, cataloged under National Stock Number 4020-00-240-2186, is classified within Federal Supply Class 4020 (Fiber Rope, Cordage, and Twine) of the Rope, Cable, Chain, and Fittings group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4020-00-240-2186 |
| Item Name | Roundline |
| FSC / FSG | 4020 / 40 — Fiber Rope, Cordage, and Twine |
| Status | ACTIVE |
| Issue Form Weight | 20.0 POUNDS MINIMUM LBS |
| Breaking Strength | 300.0 POUNDS MINIMUM LBS |
| Nondefinitive Spec/std Data | 4 TYPE AND 4 CLASS |
| Physical Form | COIL |
| Unable to Decode | UNABLE TO DECODE |
| Unable to Decode | UNABLE TO DECODE |
| Material | TAR IMPREGNATION |
| Length Per Weight | 90.000 FEET PER POUND MINIMUM FT |
| 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 |
|---|---|
| T-R-650 TY4 CL4 3PLY 20LBCL | 2/2 Government specification standardization U.S. Government activity |
| TR650 | 4/1 Identification reference U.S. Government activity |
NSN 4020-00-240-2186 is a Roundline, classified under FSC 4020, Fiber Rope, Cordage, and Twine. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4020-00-241-8892, 4020-00-241-8893. Verify interchangeability with system specifications before substitution.
Key specifications for 4020-00-240-2186: Issue Form Weight: 20.0 POUNDS MINIMUM LBS; Breaking Strength: 300.0 POUNDS MINIMUM LBS; Nondefinitive Spec/std Data: 4 TYPE AND 4 CLASS; Physical Form: COIL. 8 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.