The Block,tackle, cataloged under National Stock Number 3940-00-239-8776, 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 | 3940-00-239-8776 |
| 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 |
| Tackle Accommodated Type | WIRE ROPE |
| Attachment Style | DRILLED SWIVEL EYE AND SHACKLE |
| Block Type | REGULAR |
| Tackle Locking Device | NOT INCLUDED |
| Maximum Tackle Diameter Accommodated | 0.625 INCHES IN |
| Sheave Outside Diameter | 6.000 INCHES NOMINAL IN |
| Becket Quantity | 1 |
| Sheave Bearing Lubrication Method | SELF-LUBRICATED |
| Antitoppling Device | NOT INCLUDED |
| Sheave Quantity | 2 |
| Material | STEEL SHELL |
| Nondefinitive Spec/std Data | 2 TYPE AND B GRADE AND 2 STYLE |
| Material | STEEL SHEAVE |
| Style Designator | OVAL PATTERN |
| Load Rating | 4500.0 POUNDS MAXIMUM LBS |
| Bearing Type | PLAIN |
| Surface Treatment | ZINC OVERALL |
| Material | STEEL CENTER PIN |
| Material | COPPER ALLOY BEARING |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| GGGB500 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 3940-00-239-8776 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 3940-00-239-8776 has 1 cross-referenced part number: GGGB500 (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 11 known substitutes for 3940-00-239-8776: 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: Tackle Accommodated Type: WIRE ROPE; Attachment Style: DRILLED SWIVEL EYE AND SHACKLE; Block Type: REGULAR; Tackle Locking Device: NOT INCLUDED. 19 total characteristics are documented in the Federal Logistics Information System.