The Block,tackle, cataloged under National Stock Number 3940-01-442-9789, is classified within Federal Supply Class 3940 (No Item Name Available) of the Materials Handling Equipment group. The primary manufacturer of record is Lake Shore Systems, Inc.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-01-442-9789 |
| Primary Part Number | 7D3-05679 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — No Item Name Available |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| Antitoppling Device | NOT INCLUDED |
| Attachment Style | SWIVEL JAW AND GUY EYES |
| Tackle Accommodated Type | WIRE ROPE |
| Sheave Outside Diameter | 14.000 INCHES NOMINAL IN |
| Sheave Quantity | 1 |
| Center Pin Diameter | 0.500 INCHES NOMINAL IN |
| Shell Length | 20.000 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Maximum Tackle Diameter Accommodated | 0.500 INCHES IN |
| Style Designator | HOISTER PATTERN |
| Sheave Bearing Lubrication Method | PRESSURE GREASE FITTING |
| Block Type | REGULAR |
| Tackle Locking Device | NOT INCLUDED |
| Bearing Type | PLAIN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 7D5-05660 REV B ITEM 9 | Lake Shore Systems, Inc. (USA) |
| 7D3-05679 PRIMARY | Lake Shore Systems, Inc. (USA) |
NSN 3940-01-442-9789 is a Block,tackle, manufactured by Lake Shore Systems, Inc., classified under FSC 3940 (No Item Name Available). Status: active.
NSN 3940-01-442-9789 has 2 cross-referenced part numbers: 7D5-05660 REV B ITEM 9 (Lake Shore Systems, Inc.), 7D3-05679 (Lake Shore Systems, Inc.).
There are 5 known substitutes for 3940-01-442-9789: 2040-01-442-4049, 2040-01-442-4051, 2040-01-442-4053 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 7D3-05679: Antitoppling Device: NOT INCLUDED; Attachment Style: SWIVEL JAW AND GUY EYES; Tackle Accommodated Type: WIRE ROPE; Sheave Outside Diameter: 14.000 INCHES NOMINAL IN. 16 total characteristics are documented in the Federal Logistics Information System.