The Block,tackle, cataloged under National Stock Number 3940-00-926-3713, 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 3 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 | 3940-00-926-3713 |
| 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 Quantity | 2 |
| Tackle Accommodated Type | FIBROUS ROPE |
| Material | IRON AND STEEL SHEAVE |
| Load Rating | 1600.0 POUNDS MAXIMUM LBS |
| Material | STEEL CENTER PIN |
| Style Designator | ROUND PATTERN |
| Shell Length | 4.000 INCHES NOMINAL IN |
| Material | IRON AND STEEL SHELL |
| Material | COPPER ALLOY BEARING |
| Nondefinitive Spec/std Data | 2 TYPE |
| Bearing Type | PLAIN |
| Unable to Decode | UNABLE TO DECODE |
| Sheave Bearing Lubrication Method | SELF-LUBRICATED |
| Attachment Style | FLATTED LOOSE SWIVEL EYE WITH SWIVEL HOOK |
| Center Pin Diameter | 0.375 INCHES NOMINAL IN |
| Block Type | REGULAR |
| Tackle Locking Device | NOT INCLUDED |
| Becket Type | THIMBLE |
| Maximum Tackle Diameter Accommodated | 0.500 INCHES IN |
| Becket Quantity | 1 |
| Antitoppling Device | NOT INCLUDED |
| Sheave Outside Diameter | 2.250 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| GGG-B-490 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| A-A-59808 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| AA59808-12E | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
NSN 3940-00-926-3713 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 3940-00-926-3713 has 3 cross-referenced part numbers: GGG-B-490 (Federal Specifications Promulgated by General Services Administration Washington DC), A-A-59808 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), AA59808-12E (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
There are 8 known substitutes for 3940-00-926-3713: 3940-00-059-5995, 3940-00-059-5996, 3940-00-068-9173 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for GGG-B-490: Sheave Quantity: 2; Tackle Accommodated Type: FIBROUS ROPE; Special Features: SHEAVE THICKNESS AT RIM MIN 0.625 IN. IN; Material: IRON AND STEEL SHEAVE. 23 total characteristics are documented in the Federal Logistics Information System.
NSN 3940-00-926-3713 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.