The Block,tackle, cataloged under National Stock Number 3940-01-463-8515, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is Clamshell Structures, Inc. Government technical data includes 4 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 | 3940-01-463-8515 |
| Primary Part Number | 50-3107 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Manufacturer | Clamshell Structures, Inc |
| Status | ACTIVE |
| Attachment Style | FLATTED STIFF SWIVEL SAFETY SNAP HOOK |
| Tackle Accommodated Type | WIRE ROPE |
| Block Type | SNATCH |
| Style Designator | OVAL PATTERN |
| 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 |
|---|---|
| 50-3107 PRIMARY | Clamshell Structures, Inc (USA) |
NSN 3940-01-463-8515 is a Block,tackle, manufactured by Clamshell Structures, Inc, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
NSN 3940-01-463-8515 has 1 manufacturer part number on file: 50-3107 (Clamshell Structures, Inc).
Key specifications for 50-3107: Attachment Style: FLATTED STIFF SWIVEL SAFETY SNAP HOOK; Tackle Accommodated Type: WIRE ROPE; Block Type: SNATCH; Style Designator: OVAL PATTERN. 4 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.