The Block,tackle, cataloged under National Stock Number 3940-00-494-0834, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-00-494-0834 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Status | ACTIVE |
| Attachment Style | ROUND SWIVEL EYE |
| Sheave Bearing Lubrication Method | SELF-LUBRICATED |
| Maximum Tackle Diameter Accommodated | 0.250 INCHES IN |
| Load Rating | 150.0 POUNDS MAXIMUM LBS |
| Tackle Locking Device | NOT INCLUDED |
| Sheave Outside Diameter | 1.000 INCHES NOMINAL IN |
| Tackle Accommodated Type | FIBROUS ROPE |
| Block Type | REGULAR |
| Style Designator | ROUND PATTERN |
| Nondefinitive Spec/std Data | 2 TYPE |
| Shell Length | 1.000 INCHES NOMINAL IN |
| Bearing Type | PLAIN |
| Surface Treatment | ZINC OVERALL |
| Sheave Quantity | 1 |
| Material | STEEL SHEAVE |
| Material | STEEL CENTER PIN |
| Material | COPPER ALLOY BEARING |
| Material | IRON SHELL |
| 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 |
|---|---|
| GGGB490 | 4/1 Identification reference U.S. Government activity |
NSN 3940-00-494-0834 is a Block,tackle, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
Key specifications for 3940-00-494-0834: Attachment Style: ROUND SWIVEL EYE; Sheave Bearing Lubrication Method: SELF-LUBRICATED; Maximum Tackle Diameter Accommodated: 0.250 INCHES IN; Load Rating: 150.0 POUNDS MAXIMUM LBS. 19 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.