The Shackle, cataloged under National Stock Number 4030-01-255-0300, is classified within Federal Supply Class 4030 (Fittings for Rope, Cable, and Chain) of the Rope, Cable, Chain, and Fittings group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4030-01-255-0300 |
| Item Name | Shackle |
| FSC / FSG | 4030 / 40 — Fittings for Rope, Cable, and Chain |
| Status | ACTIVE |
| Style Designator | WIRE ROPE |
| Opening Width | 0.348 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE |
| Distance From Bail Center to Hole Center | 1.125 INCHES NOMINAL IN |
| Inside Diameter | 0.594 INCHES NOMINAL IN |
| Leg End Thickness | 0.208 INCHES NOMINAL IN |
| Minor Diameter | 0.422 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Major Diameter | 0.422 INCHES NOMINAL IN |
| Breaking Strength | ERR-060 |
| 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 |
|---|---|
| MIL-DTL-5675 | 4/1 Identification reference U.S. Government activity |
| MS20115-10 | 2/2 Government specification standardization U.S. Government activity |
NSN 4030-01-255-0300 is a Shackle, classified under FSC 4030, Fittings for Rope, Cable, and Chain. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4030-01-255-0301. Verify interchangeability with system specifications before substitution.
Key specifications for 4030-01-255-0300: Style Designator: WIRE ROPE; Opening Width: 0.348 INCHES NOMINAL IN; Material Document and Classification: MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE; Distance From Bail Center to Hole Center: 1.125 INCHES NOMINAL IN. 10 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.