The Block,tackle, cataloged under National Stock Number 3940-00-238-0409, 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 19 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: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-00-238-0409 |
| 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 | ACTIVE |
| Material | STEEL SHELL |
| Load Rating | 8000.0 POUNDS MAXIMUM LBS |
| Material | STEEL SHEAVE |
| Block Type | SNATCH |
| Sheave Outside Diameter | 10.000 INCHES NOMINAL IN |
| Sheave Bearing Lubrication Method | SELF-LUBRICATED |
| Maximum Tackle Diameter Accommodated | 0.750 INCHES IN |
| Sheave Quantity | 1 |
| Locking Style | SAFETY LOCKING |
| Tackle Locking Device | NOT INCLUDED |
| Antitoppling Device | NOT INCLUDED |
| Bearing Type | PLAIN |
| Nondefinitive Spec/std Data | 1 TYPE |
| Attachment Style | DRILLED SWIVEL EYE AND SHACKLE |
| Material | COPPER ALLOY BEARING |
| Material | STEEL CENTER PIN |
| Surface Treatment | ZINC OVERALL |
| Style Designator | OVAL PATTERN |
| Tackle Accommodated Type | WIRE ROPE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| GGGB500 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 3940-00-238-0409 is a Block,tackle, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 3940 (No Item Name Available). Status: active.
NSN 3940-00-238-0409 has 1 cross-referenced part number: GGGB500 (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 11 known substitutes for 3940-00-238-0409: 3940-00-234-8239, 3940-00-238-0348, 3940-00-238-0408 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for GGGB500: Material: STEEL SHELL; Load Rating: 8000.0 POUNDS MAXIMUM LBS; Material: STEEL SHEAVE; Block Type: SNATCH. 19 total characteristics are documented in the Federal Logistics Information System.