The Block,tackle, cataloged under National Stock Number 3940-00-059-5996, 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 4 commercial cross-references from 3 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 | 3940-00-059-5996 |
| 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 |
| Becket Quantity | 1 |
| Material | COPPER ALLOY BEARING |
| Material | STEEL CENTER PIN |
| Unable to Decode | UNABLE TO DECODE |
| Sheave Quantity | 2 |
| Style Designator | ROUND PATTERN |
| Nondefinitive Spec/std Data | 2 TYPE |
| Tackle Accommodated Type | FIBROUS ROPE |
| Tackle Locking Device | NOT INCLUDED |
| Sheave Outside Diameter | 3.500 INCHES NOMINAL IN |
| Shell Length | 6.000 INCHES NOMINAL IN |
| Attachment Style | FLATTED LOOSE SWIVEL EYE WITH SWIVEL HOOK |
| Load Rating | 3300.0 POUNDS MAXIMUM LBS |
| Sheave Bearing Lubrication Method | SELF-LUBRICATED |
| Becket Type | THIMBLE |
| Material | IRON AND STEEL SHELL |
| Bearing Type | PLAIN |
| Antitoppling Device | NOT INCLUDED |
| Maximum Tackle Diameter Accommodated | 0.750 INCHES IN |
| Center Pin Diameter | 0.500 INCHES NOMINAL IN |
| Material | IRON AND STEEL SHEAVE |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| GGG-B-490 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 62619-02X01PC48 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| AA59808-32E | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| A-A-59808 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
NSN 3940-00-059-5996 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 3940-00-059-5996 has 4 cross-referenced part numbers: GGG-B-490 (Federal Specifications Promulgated by General Services Administration Washington DC), 62619-02X01PC48 (Electric Boat Corporation Div General Dynamics Electric Boat), AA59808-32E (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), A-A-59808 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
There are 8 known substitutes for 3940-00-059-5996: 3940-00-059-5995, 3940-00-068-9173, 3940-00-072-0331 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for GGG-B-490: Becket Quantity: 1; Material: COPPER ALLOY BEARING; Material: STEEL CENTER PIN; Unable to Decode: UNABLE TO DECODE. 22 total characteristics are documented in the Federal Logistics Information System.
NSN 3940-00-059-5996 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.