The Block,tackle, cataloged under National Stock Number 3940-00-246-8841, 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 20 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-00-246-8841 |
| Primary Part Number | GG-B-500 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — No Item Name Available |
| Manufacturer | Federal Specifications Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Material | STEEL SHELL |
| Surface Treatment | ZINC OVERALL |
| Style Designator | DIAMOND PATTERN |
| Attachment Style | DRILLED SWIVEL EYE AND SHACKLE |
| Antitoppling Device | NOT INCLUDED |
| Sheave Outside Diameter | 12.000 INCHES NOMINAL IN |
| Sheave Bearing Lubrication Method | SELF-LUBRICATED |
| Sheave Quantity | 2 |
| Maximum Tackle Diameter Accommodated | 0.875 INCHES IN |
| Block Type | REGULAR |
| Becket Quantity | 1 |
| Becket Type | THIMBLE |
| Tackle Accommodated Type | WIRE ROPE |
| Tackle Locking Device | NOT INCLUDED |
| Material | STEEL SHEAVE |
| Material | COPPER ALLOY BEARING |
| Load Rating | 10000.0 POUNDS MAXIMUM LBS |
| Nondefinitive Spec/std Data | 2 TYPE AND B GRADE AND 2 STYLE |
| Material | STEEL CENTER PIN |
| Bearing Type | PLAIN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| GG-B-500 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 3940-00-246-8841 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 3940-00-246-8841 has 1 cross-referenced part number: GG-B-500 (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 2 known substitutes for 3940-00-246-8841: 3940-00-239-8778, 3940-00-272-9308. Verify interchangeability with system specifications before substitution.
Key specifications for GG-B-500: Material: STEEL SHELL; Surface Treatment: ZINC OVERALL; Style Designator: DIAMOND PATTERN; Attachment Style: DRILLED SWIVEL EYE AND SHACKLE. 20 total characteristics are documented in the Federal Logistics Information System.