The Shackle, cataloged under National Stock Number 4030-01-157-6391, 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 6 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4030-01-157-6391 |
| Item Name | Shackle |
| FSC / FSG | 4030 / 40 — Fittings for Rope, Cable, and Chain |
| Status | ACTIVE |
| Material Diameter | 0.750 INCHES NOMINAL IN |
| Criticality Code Justification | ZZZY |
| Style Designator | CHAIN |
| Opening Width | 2.000 INCHES NOMINAL IN |
| Material | STEEL |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | C |
| Reference | Meaning |
|---|---|
| ADB-23002 | 3/9 Design control — primary reference Cbs Broadcasting Inc. Dba Cbs Div Bechtel Plant Machinery Inc. - Pittsburgh |
| 07-D-3112PC7 | 5/9 Secondary reference U.S. Government activity |
NSN 4030-01-157-6391 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): 4030-01-660-7107. Verify interchangeability with system specifications before substitution.
Key specifications for 4030-01-157-6391: Material Diameter: 0.750 INCHES NOMINAL IN; Criticality Code Justification: ZZZY; Style Designator: CHAIN; Opening Width: 2.000 INCHES NOMINAL IN. 6 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.
NSN 4030-01-157-6391 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.