The Block,tackle, cataloged under National Stock Number 3940-00-926-3717, 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 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 3940-00-926-3717 |
| Primary Part Number | GGG-B-490 |
| 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 |
| Tackle Locking Device | NOT INCLUDED |
| Load Rating | 10600.0 POUNDS MAXIMUM LBS |
| Style Designator | ROUND PATTERN |
| Nondefinitive Spec/std Data | 2 TYPE |
| Bearing Type | PLAIN |
| Material | COPPER ALLOY BEARING |
| Material | STEEL CENTER PIN |
| Material | IRON AND STEEL SHEAVE |
| Sheave Quantity | 2 |
| Material | IRON AND STEEL SHELL |
| Maximum Tackle Diameter Accommodated | 1.500 INCHES IN |
| Tackle Accommodated Type | FIBROUS ROPE |
| Sheave Bearing Lubrication Method | SELF-LUBRICATED |
| Antitoppling Device | NOT INCLUDED |
| Attachment Style | CHAIN SHACKLE |
| Center Pin Diameter | 0.750 INCHES NOMINAL IN |
| Block Type | REGULAR |
| Becket Quantity | 1 |
| Becket Type | THIMBLE |
| Shell Length | 12.000 INCHES NOMINAL IN |
| Unable to Decode | UNABLE TO DECODE |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 3940-00-926-3717 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 3940-00-926-3717 has 2 cross-referenced part numbers: GGG-B-490 (Federal Specifications Promulgated by General Services Administration Washington DC), 3042-12 (Apex Tool Group).
There are 8 known substitutes for 3940-00-926-3717: 3110-00-155-6289, 5962-00-327-0919, 4130-00-788-9392 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for GGG-B-490: Sheave Outside Diameter: 8.000 INCHES NOMINAL IN; Tackle Locking Device: NOT INCLUDED; Load Rating: 10600.0 POUNDS MAXIMUM LBS; Style Designator: ROUND PATTERN. 23 total characteristics are documented in the Federal Logistics Information System.
NSN 3940-00-926-3717 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.