The Block,tackle, cataloged under National Stock Number 3940-01-658-4663, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is The Crosby Group Llc Dba the Crosby Group. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-01-658-4663 |
| Primary Part Number | 752983 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Manufacturer | The Crosby Group Llc Dba the Crosby Group |
| Status | ACTIVE |
| Maximum Tackle Diameter Accommodated | 1.0 INCHES IN |
| Load Rating | 20000.0 POUNDS MAXIMUM LBS |
| Sheave Outside Diameter | 16.0 INCHES NOMINAL IN |
| Tackle Accommodated Type | WIRE ROPE |
| Block Type | REGULAR |
| Style Designator | PULLEY PATTERN |
| Bearing Type | ROLLER |
| Sheave Quantity | 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 |
|---|---|
| 752983 PRIMARY | The Crosby Group Llc Dba the Crosby Group (USA) |
NSN 3940-01-658-4663 is a Block,tackle, manufactured by The Crosby Group Llc Dba the Crosby Group, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
NSN 3940-01-658-4663 has 1 manufacturer part number on file: 752983 (The Crosby Group Llc Dba the Crosby Group).
Key specifications for 752983: Maximum Tackle Diameter Accommodated: 1.0 INCHES IN; Load Rating: 20000.0 POUNDS MAXIMUM LBS; Sheave Outside Diameter: 16.0 INCHES NOMINAL IN; Tackle Accommodated Type: WIRE ROPE. 8 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.