The Shackle, cataloged under National Stock Number 4030-01-605-7652, is classified within Federal Supply Class 4030 (Fittings for Rope, Cable, and Chain) of the Rope, Cable, Chain, and Fittings group. The manufacturer of record is The Crosby Group Llc Dba the Crosby Group. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4030-01-605-7652 |
| Primary Part Number | 1017604 |
| Item Name | Shackle |
| FSC / FSG | 4030 / 40 — Fittings for Rope, Cable, and Chain |
| Manufacturer | The Crosby Group Llc Dba the Crosby Group |
| Status | ACTIVE |
| Surface Treatment Document and Classification | SW33644 MFR REF SINGLE TREATMENT RESPONSE |
| Inside Length | 4.250 INCHES NOMINAL IN |
| End Condition | THREADED |
| Material Diameter | 1.160 INCHES NOMINAL IN |
| Style Designator | ANCHOR |
| Opening Width | 1.810 INCHES NOMINAL IN |
| Eyelet Style | ROUND THREADED |
| Material Document and Classification | RR-C-271,TY IVA,CL 2,GR B FED SPEC SINGLE MATERIAL RESPONSE |
| Safe Operating Load Rating | 36000.0 POUNDS NOMINAL LBS |
| Locking Device Type | PIN |
| Closure Head Style | SHOULDER EYE |
| Surface Treatment | PAINT |
| Eye Inside Diameter | 1.250 INCHES NOMINAL IN |
| Material | STEEL |
| Breaking Strength | 80000.0 BELT GROUP 1 |
| 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 |
|---|---|
| 1017604 PRIMARY | The Crosby Group Llc Dba the Crosby Group (USA) |
| Reference | Meaning |
|---|---|
| SW37112-2 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| M655A | 5/2 Secondary reference U.S. Government activity |
NSN 4030-01-605-7652 is a Shackle, manufactured by The Crosby Group Llc Dba the Crosby Group, classified under FSC 4030, Fittings for Rope, Cable, and Chain. Status: active.
NSN 4030-01-605-7652 has 1 manufacturer part number on file: 1017604 (The Crosby Group Llc Dba the Crosby Group).
1 possible match (shared part number, not a government interchangeability claim): 4030-01-647-9505. Verify interchangeability with system specifications before substitution.
Key specifications for 1017604: Surface Treatment Document and Classification: SW33644 MFR REF SINGLE TREATMENT RESPONSE; Inside Length: 4.250 INCHES NOMINAL IN; End Condition: THREADED; Material Diameter: 1.160 INCHES NOMINAL IN. 15 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.