The Block,tackle, cataloged under National Stock Number 3940-00-238-0348, 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 21 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 | 3940-00-238-0348 |
| 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 |
| Bearing Type | PLAIN |
| Load Rating | 12000.0 POUNDS MAXIMUM LBS |
| Tackle Locking Device | INCLUDED |
| Maximum Tackle Diameter Accommodated | 1.000 INCHES IN |
| Antitoppling Device | NOT INCLUDED |
| Sheave Outside Diameter | 14.000 INCHES NOMINAL IN |
| Tackle Accommodated Type | WIRE ROPE |
| Center Pin Diameter | 0.750 INCHES NOMINAL IN |
| Locking Style | DROP LINK |
| Attachment Style | DRILLED SWIVEL EYE AND SHACKLE |
| Shell Length | 20.000 INCHES NOMINAL IN |
| Block Type | SNATCH |
| Sheave Quantity | 1 |
| Sheave Bearing Lubrication Method | SELF-LUBRICATED |
| Surface Treatment | ZINC OVERALL |
| Material | COPPER ALLOY BEARING |
| Material | STEEL CENTER PIN |
| Material | STEEL SHEAVE |
| Material | STEEL SHELL |
| Style Designator | OVAL PATTERN |
| Nondefinitive Spec/std Data | 1 TYPE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| GGGB500 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 3940-00-238-0348 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 3940-00-238-0348 has 1 cross-referenced part number: GGGB500 (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 11 known substitutes for 3940-00-238-0348: 3940-00-234-8239, 3940-00-238-0408, 3940-00-238-0409 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for GGGB500: Bearing Type: PLAIN; Load Rating: 12000.0 POUNDS MAXIMUM LBS; Tackle Locking Device: INCLUDED; Maximum Tackle Diameter Accommodated: 1.000 INCHES IN. 21 total characteristics are documented in the Federal Logistics Information System.