The Hook Block Assembly, cataloged under National Stock Number 3940-01-715-9426, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is Allied Systems Company Dba Allied Systems Co. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-01-715-9426 |
| Primary Part Number | 257981 |
| Item Name | Hook Block Assembly |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Manufacturer | Allied Systems Company Dba Allied Systems Co |
| Status | ACTIVE |
| 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 |
|---|---|
| 257981 PRIMARY | Allied Systems Company Dba Allied Systems Co (USA) |
NSN 3940-01-715-9426 is a Hook Block Assembly, manufactured by Allied Systems Company Dba Allied Systems Co, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
NSN 3940-01-715-9426 has 1 manufacturer part number on file: 257981 (Allied Systems Company Dba Allied Systems Co).
Key specifications for 257981: Part Name Assigned by Controlling Agency: HOOK BLOCK ASSEMBLY; End Item Identification: 3950016142267:CRANE KNUCKLE BOOM:K280-70:60848. 0 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.