The Block,tackle, cataloged under National Stock Number 3940-01-382-0069, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 11 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 | 3940-01-382-0069 |
| Primary Part Number | 3136T21 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Attachment Style | FLATTED LOOSE SWIVEL SAFETY SNAP HOOK |
| Sheave Bearing Lubrication Method | SELF-LUBRICATED |
| Maximum Tackle Diameter Accommodated | 0.500 INCHES IN |
| Load Rating | 3000.0 POUNDS MAXIMUM LBS |
| Tackle Accommodated Type | WIRE ROPE |
| Style Designator | OVAL PATTERN |
| Shell Length | 6.000 INCHES NOMINAL IN |
| Sheave Quantity | 2 |
| Material | STEEL SHELL |
| Material | COPPER ALLOY BEARING |
| Material | IRON CAST 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 |
|---|---|
| 3136T21 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 3940-01-382-0069 is a Block,tackle, manufactured by Mcmaster-Carr Supply Co, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
NSN 3940-01-382-0069 has 1 manufacturer part number on file: 3136T21 (Mcmaster-Carr Supply Co).
Key specifications for 3136T21: Attachment Style: FLATTED LOOSE SWIVEL SAFETY SNAP HOOK; Sheave Bearing Lubrication Method: SELF-LUBRICATED; Maximum Tackle Diameter Accommodated: 0.500 INCHES IN; Load Rating: 3000.0 POUNDS MAXIMUM LBS. 11 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.