The Block,tackle, cataloged under National Stock Number 3940-00-227-5521, is classified within Federal Supply Class 3940 (No Item Name Available) of the Materials Handling Equipment group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 13 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 | 3940-00-227-5521 |
| Primary Part Number | S1801-860441PC1-2-9T011-14-16-1- |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — No Item Name Available |
| Manufacturer | Naval Ship Systems Command |
| Status | ACTIVE |
| Tackle Accommodated Type | FIBROUS ROPE |
| Sheave Outside Diameter | 5.500 INCHES NOMINAL IN |
| Shell Length | 8.000 INCHES NOMINAL IN |
| Unable to Decode | UNABLE TO DECODE |
| Center Pin Diameter | 0.625 INCHES NOMINAL IN |
| Sheave Quantity | 3 |
| Sheave Bearing Lubrication Method | SELF-LUBRICATED |
| Bearing Type | PLAIN |
| Style Designator | OVAL PATTERN |
| Reference Number Differentiating Characteristics | ELP NO. SIZE 8 IN.,RIG NO. 4 IN |
| Maximum Tackle Diameter Accommodated | 1.000 INCHES IN |
| Load Rating | 7050.0 POUNDS MAXIMUM LBS |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| S1801-860441PC1-2-9T011-14-16-1- | Naval Ship Systems Command (USA) |
NSN 3940-00-227-5521 is a Block,tackle, manufactured by Naval Ship Systems Command, classified under FSC 3940 (No Item Name Available). Status: active.
NSN 3940-00-227-5521 has 1 cross-referenced part number: S1801-860441PC1-2-9T011-14-16-1- (Naval Ship Systems Command).
There are 2 known substitutes for 3940-00-227-5521: 3940-00-227-5519, 3940-00-227-5520. Verify interchangeability with system specifications before substitution.
Key specifications for S1801-860441PC1-2-9T011-14-16-1-: Tackle Accommodated Type: FIBROUS ROPE; Sheave Outside Diameter: 5.500 INCHES NOMINAL IN; Shell Length: 8.000 INCHES NOMINAL IN; Unable to Decode: UNABLE TO DECODE. 13 total characteristics are documented in the Federal Logistics Information System.