The Block,tackle, cataloged under National Stock Number 3940-01-706-8682, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is Rock Exotica. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-01-706-8682 |
| Primary Part Number | P53-B |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Manufacturer | Rock Exotica |
| Status | ACTIVE |
| Sheave Outside Diameter | 51.0 MILLIMETERS NOMINAL MM |
| Block Type | REGULAR |
| Style Designator | PULLEY PATTERN |
| Sheave Quantity | 1 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3940-01-706-8682 is a Block,tackle, manufactured by Rock Exotica, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
NSN 3940-01-706-8682 has 2 manufacturer part numbers on file: R3P53B (Helix Operations Limited), P53-B (Rock Exotica).
Key specifications for P53-B: Sheave Outside Diameter: 51.0 MILLIMETERS NOMINAL MM; Block Type: REGULAR; Style Designator: PULLEY PATTERN; Weight: 0.76875 POUNDS LBS. 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.