The Hook Block Assembly, cataloged under National Stock Number 3940-01-383-4112, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-01-383-4112 |
| Item Name | Hook Block Assembly |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Status | ACTIVE |
| Attachment Style | FLATTED LOOSE SAFETY SNAP HOOK |
| Maximum Tackle Diameter Accommodated | 0.750 INCHES IN |
| Load Rating | 60000.0 POUNDS MAXIMUM LBS |
| Tackle Locking Device | NOT INCLUDED |
| Sheave Outside Diameter | 14.000 INCHES NOMINAL IN |
| Tackle Accommodated Type | WIRE ROPE |
| Block Type | REGULAR |
| Center Pin Diameter | 2.500 INCHES NOMINAL IN |
| Style Designator | OVAL PATTERN WITH ROPE GUARDS |
| Shell Length | 37.750 INCHES NOMINAL IN |
| Bearing Type | ROLLER |
| Sheave Quantity | 3 |
| Material | STEEL OVERALL |
| Antitoppling Device | NOT INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| J-30T14RTAB-3/4WR | 3/9 Design control — primary reference U.S. Government activity |
| J30T14RTAB-3/4W R | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 3940-01-383-4112 is a Hook Block Assembly, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
Key specifications for 3940-01-383-4112: Attachment Style: FLATTED LOOSE SAFETY SNAP HOOK; Maximum Tackle Diameter Accommodated: 0.750 INCHES IN; Load Rating: 60000.0 POUNDS MAXIMUM LBS; Tackle Locking Device: NOT INCLUDED. 14 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.