The Block,tackle, cataloged under National Stock Number 3940-00-234-8239, is classified within Federal Supply Class 3940 (No Item Name Available) of the Materials Handling Equipment group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 3940-00-234-8239 |
| Primary Part Number | GGGB500 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — No Item Name Available |
| Manufacturer | Federal Specifications Promulgated by General Services Administration Washington DC |
| Status | CANCELLED |
| Sheave Outside Diameter | 8.000 INCHES NOMINAL IN |
| Block Type | SNATCH |
| Sheave Quantity | 1 |
| Tackle Accommodated Type | WIRE ROPE |
| Center Pin Diameter | 0.875 INCHES NOMINAL IN |
| Sheave Bearing Lubrication Method | SELF-LUBRICATED |
| Antitoppling Device | NOT INCLUDED |
| Attachment Style | FLATTED STIFF SWIVEL HOOK |
| Maximum Tackle Diameter Accommodated | 0.625 INCHES IN |
| Unable to Decode | UNABLE TO DECODE |
| Locking Style | DROP LINK |
| Nondefinitive Spec/std Data | 1 TYPE |
| Material | STEEL SHELL |
| Load Rating | 6000.0 POUNDS MAXIMUM LBS |
| Material | STEEL SHEAVE |
| Style Designator | OVAL PATTERN |
| Material | COPPER ALLOY BEARING |
| Material | STEEL CENTER PIN |
| Tackle Locking Device | NOT INCLUDED |
| Bearing Type | PLAIN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| GGGB500 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 3940-00-234-8239 is a Block,tackle, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 3940 (No Item Name Available). Status: cancelled.
NSN 3940-00-234-8239 has 1 cross-referenced part number: GGGB500 (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 11 known substitutes for 3940-00-234-8239: 3940-00-238-0348, 3940-00-238-0408, 3940-00-238-0409 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for GGGB500: Sheave Outside Diameter: 8.000 INCHES NOMINAL IN; Block Type: SNATCH; Sheave Quantity: 1; Tackle Accommodated Type: WIRE ROPE. 20 total characteristics are documented in the Federal Logistics Information System.
NSN 3940-00-234-8239 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.