The Hook,grab, cataloged under National Stock Number 4030-00-984-3674, 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 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4030-00-984-3674 |
| Primary Part Number | 1027187 |
| Item Name | Hook,grab |
| 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 |
| Connection Inside Width | 0.594 INCHES NOMINAL IN |
| Connection Inside Length | 0.547 INCHES NOMINAL IN |
| Style Designator | POINTED |
| Material Document and Classification | MIL-S-17759 MIL SPEC SINGLE MATERIAL RESPONSE |
| Accommodated Material Diameter | 0.500 INCHES MAXIMUM IN |
| Surface Treatment | ZINC |
| Material | STEEL |
| 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 |
|---|---|
| 1027187 PRIMARY | The Crosby Group Llc Dba the Crosby Group (USA) |
| 9986639 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| H330G375 | 5/9 Secondary reference The Crosby Group Llc Dba the Crosby Group |
| H330G.50 | 5/9 Secondary reference The Crosby Group Llc Dba the Crosby Group |
| 61593 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4030-00-984-3674 is a Hook,grab, manufactured by The Crosby Group Llc Dba the Crosby Group, classified under FSC 4030, Fittings for Rope, Cable, and Chain. Status: active.
NSN 4030-00-984-3674 has 2 manufacturer part numbers on file: 1027187 (The Crosby Group Llc Dba the Crosby Group), 9986639 (Us Army Aviation and Missile Command).
3 possible matches (shared part number, not a government interchangeability claim): 5310-01-080-8115, 1285-01-100-7587, 5975-01-670-7817. Verify interchangeability with system specifications before substitution.
Key specifications for 1027187: Connection Style: CLEVIS WITH COTTER TYPE CLOSURE; Connection Inside Width: 0.594 INCHES NOMINAL IN; Connection Inside Length: 0.547 INCHES NOMINAL IN; Style Designator: POINTED. 9 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.