The Hook,slip, cataloged under National Stock Number 4030-00-959-1073, 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 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4030-00-959-1073 |
| Primary Part Number | 1027383 |
| Item Name | Hook,slip |
| FSC / FSG | 4030 / 40 — Fittings for Rope, Cable, and Chain |
| Manufacturer | The Crosby Group Llc Dba the Crosby Group |
| Status | ACTIVE |
| Connection Style | CLEVIS WITH COTTER TYPE CLOSURE |
| Style Designator | OPEN ENDS |
| Accommodated Material Diameter | 0.250 INCHES NOMINAL IN |
| Material | STEEL |
| Fabrication Method | FORGED |
| Connection to Body Relationship | PARALLEL |
| 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 |
|---|---|
| 1027383 PRIMARY | The Crosby Group Llc Dba the Crosby Group (USA) |
| Reference | Meaning |
|---|---|
| 66192 | 5/9 Secondary reference U.S. Government activity |
| H-331 1/4 INCH | 5/9 Secondary reference The Crosby Group Llc Dba the Crosby Group |
| H770S1-4 | 5/9 Secondary reference Anvil Industries Inc Cleveland City Forge |
NSN 4030-00-959-1073 is a Hook,slip, manufactured by The Crosby Group Llc Dba the Crosby Group, classified under FSC 4030, Fittings for Rope, Cable, and Chain. Status: active.
NSN 4030-00-959-1073 has 1 manufacturer part number on file: 1027383 (The Crosby Group Llc Dba the Crosby Group).
1 possible match (shared part number, not a government interchangeability claim): 3110-01-021-0862. Verify interchangeability with system specifications before substitution.
Key specifications for 1027383: Connection Style: CLEVIS WITH COTTER TYPE CLOSURE; Style Designator: OPEN ENDS; Accommodated Material Diameter: 0.250 INCHES NOMINAL IN; Material: STEEL. 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.
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.