The Block,tackle, cataloged under National Stock Number 3940-01-136-6187, is classified within Federal Supply Class 3940 (No Item Name Available) of the Materials Handling Equipment group. The primary manufacturer of record is Seattle Mfg Corp. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-01-136-6187 |
| Primary Part Number | 152500 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — No Item Name Available |
| Manufacturer | Seattle Mfg Corp |
| Status | ACTIVE |
| Tackle Locking Device | NOT INCLUDED |
| Sheave Quantity | 1 |
| Material Document and Classification | ALLOY COMP 6061-T6 ASSN STD SINGLE MATERIAL RESPONSE SHELL |
| Center Pin Diameter | 0.375 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE SHELL |
| Bearing Type | BALL |
| Load Rating | 2000.0 POUNDS MAXIMUM LBS |
| Style Designator | PULLEY PATTERN |
| Material | ALUMINUM ALLOY 6061 SHELL |
| Material Document and Classification | ALLOY COMP 2024-T3 ASSN STD SINGLE MATERIAL RESPONSE SHEAVE |
| Shell Length | 7.000 INCHES NOMINAL IN |
| Tackle Accommodated Type | FIBROUS ROPE |
| Surface Treatment | ANODIZE SHEAVE |
| Antitoppling Device | NOT INCLUDED |
| Maximum Tackle Diameter Accommodated | 0.500 INCHES IN |
| Material | ALUMINUM ALLOY 2024 SHEAVE |
| Block Type | REGULAR |
| Material | STEEL CORROSION RESISTING CENTER PIN |
| Sheave Outside Diameter | 4.000 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3940-01-136-6187 is a Block,tackle, manufactured by Seattle Mfg Corp, classified under FSC 3940 (No Item Name Available). Status: active.
NSN 3940-01-136-6187 has 2 cross-referenced part numbers: 152500 (Seattle Mfg Corp), DC1207 (Seattle Mfg Corp).
There are 5 known substitutes for 3940-01-136-6187: 2520-00-624-1339, 8315-01-353-4182, 3110-01-367-2341 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 152500: Tackle Locking Device: NOT INCLUDED; Sheave Quantity: 1; Material Document and Classification: ALLOY COMP 6061-T6 ASSN STD SINGLE MATERIAL RESPONSE SHELL; Center Pin Diameter: 0.375 INCHES NOMINAL IN. 20 total characteristics are documented in the Federal Logistics Information System.