The Block,tackle, cataloged under National Stock Number 3940-00-722-8994, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is Royson Engineering Company. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3940-00-722-8994 |
| Primary Part Number | S8101-1723662 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Manufacturer | Royson Engineering Company |
| Status | ACTIVE |
| Attachment Style | DRILLED SWIVEL EYE AND SHACKLE |
| Sheave Bearing Lubrication Method | SELF-LUBRICATED |
| Load Rating | 12000.0 POUNDS MAXIMUM LBS |
| Tackle Locking Device | NOT INCLUDED |
| Sheave Outside Diameter | 3.500 INCHES NOMINAL IN |
| Tackle Accommodated Type | CHAIN |
| Block Type | SNATCH |
| Center Pin Diameter | 1.000 INCHES NOMINAL IN |
| Style Designator | HALF-STRAP PATTERN |
| Locking Style | SAFETY W/LATCH PIN |
| Bearing Type | PLAIN |
| Sheave Quantity | 1 |
| Material | STEEL CORROSION RESISTING SHELL |
| Material | COPPER ALLOY SHEAVE |
| Material | PLASTIC BEARING |
| Material | STEEL CORROSION RESISTING CENTER PIN |
| 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 |
| Part Number | Manufacturer |
|---|---|
| S8101-1723662 | Royson Engineering Company (USA) |
| Reference | Meaning |
|---|---|
| S8101-1723662 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3940-00-722-8994 is a Block,tackle, manufactured by Royson Engineering Company, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
NSN 3940-00-722-8994 has 1 manufacturer part number on file: S8101-1723662 (Royson Engineering Company).
Key specifications for S8101-1723662: Attachment Style: DRILLED SWIVEL EYE AND SHACKLE; Sheave Bearing Lubrication Method: SELF-LUBRICATED; Load Rating: 12000.0 POUNDS MAXIMUM LBS; Tackle Locking Device: NOT INCLUDED. 17 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.