The Block,tackle, cataloged under National Stock Number 3940-01-551-9459, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is Aviation Spares and Repairs Ltd. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-01-551-9459 |
| Primary Part Number | 19830500 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Manufacturer | Aviation Spares and Repairs Ltd |
| Status | ACTIVE |
| Bearing Type | ROLLER |
| Sheave Quantity | 1 |
| Material | ALUMINUM SHEAVE |
| 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 |
|---|---|
| 19830500 | Aviation Spares and Repairs Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 19830500 | 3/9 Design control — primary reference Lewmar, Inc. |
NSN 3940-01-551-9459 is a Block,tackle, manufactured by Aviation Spares and Repairs Ltd, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
NSN 3940-01-551-9459 has 1 manufacturer part number on file: 19830500 (Aviation Spares and Repairs Ltd).
Key specifications for 19830500: Bearing Type: ROLLER; Special Features: SIZE 3 SNATCH BLOCK W/ALUMINUM SHEAVE; NEEDLE RLLER BEARING; SAFE WORKLOAD 2155KG; BREAKING POINT 4310KG; 16MM LINE SIZE; SHEAVE DIA 80MM; WIDTH 20MM KG; Sheave Quantity: 1; Material: ALUMINUM SHEAVE. 3 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.