The Block,tackle, cataloged under National Stock Number 3940-01-685-3704, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is Associated Wire Rope & Rigging, Inc. Government technical data includes 9 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 | 3940-01-685-3704 |
| Primary Part Number | SL386B-8OS |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Manufacturer | Associated Wire Rope & Rigging, Inc |
| Status | ACTIVE |
| Attachment Style | OBLONG SWIVEL EYE |
| Maximum Tackle Diameter Accommodated | 1.0 INCHES IN |
| Sheave Outside Diameter | 4.50 INCHES NOMINAL IN |
| Tackle Accommodated Type | FIBROUS ROPE |
| Block Type | SNATCH |
| Center Pin Diameter | 0.75 INCHES NOMINAL IN |
| Style Designator | HALYARD PATTERN |
| Shell Length | 8.00 INCHES NOMINAL IN |
| Material | WOOD SHELL |
| 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 |
|---|---|
| SL386B-8OS PRIMARY | Associated Wire Rope & Rigging, Inc (USA) |
NSN 3940-01-685-3704 is a Block,tackle, manufactured by Associated Wire Rope & Rigging, Inc, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
NSN 3940-01-685-3704 has 1 manufacturer part number on file: SL386B-8OS (Associated Wire Rope & Rigging, Inc).
Key specifications for SL386B-8OS: Attachment Style: OBLONG SWIVEL EYE; Maximum Tackle Diameter Accommodated: 1.0 INCHES IN; Sheave Outside Diameter: 4.50 INCHES NOMINAL IN; Tackle Accommodated Type: FIBROUS ROPE. 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.