The Fairlead,sheave, cataloged under National Stock Number 3815-00-641-6931, is classified within Federal Supply Class 3815 (No Item Name Available) of the Construction, Mining, Excavating Equipment group. The primary manufacturer of record is Koehring Co Lorain Div. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 3815-00-641-6931 |
| Primary Part Number | MC3 |
| Item Name | Fairlead,sheave |
| FSC / FSG | 3815 / 38 — No Item Name Available |
| Manufacturer | Koehring Co Lorain Div |
| Status | CANCELLED |
| Sheave Quantity | 2 SECOND GROUP |
| Design Type | SWINGING |
| Usage Design | SPECIFIC |
| Mounting Hole Quantity | 1 SECOND GROUP |
| Sheave Mounting Position | HORIZONTAL SECOND GROUP |
| Mounting Hole Diameter | 1.313 INCHES NOMINAL SECOND GROUP IN |
| Material | STEEL FRAME |
| Swing Angle in Deg | 90 |
| Mounting Hole Diameter | 2.000 INCHES NOMINAL FIRST GROUP IN |
| Controlling Agency | THE THEW SHOVEL CO |
| End Item Name | CRANE-SHOVEL BASIC UNIT,TRUCK MOUNTED |
| Sheave Outside Diameter | 11.000 INCHES NOMINAL SECOND GROUP IN |
| Manufacturer Identifying Number | MODEL NO. MC-3 |
| Sheave Quantity | 2 FIRST GROUP |
| Sheave Outside Diameter | 12.000 INCHES NOMINAL FIRST GROUP IN |
| Wire Rope Accommodated Diameter | 0.750 INCHES SECOND GROUP IN |
| Mounting Hole Quantity | 2 FIRST GROUP |
| Sheave Mounting Position | VERTICAL FIRST GROUP |
| Wire Rope Accommodated Diameter | 0.750 INCHES FIRST GROUP IN |
| Application Design | CRANE BOOM |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 3815-00-641-6931 is a Fairlead,sheave, manufactured by Koehring Co Lorain Div, classified under FSC 3815 (No Item Name Available). Status: cancelled.
NSN 3815-00-641-6931 has 2 cross-referenced part numbers: MC3 (Koehring Co Lorain Div), MC3 (Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co).
There are 7 known substitutes for 3815-00-641-6931: 3815-00-194-7028, 3815-00-197-7247, 8475-00-559-2425 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for MC3: Sheave Quantity: 2 SECOND GROUP; Design Type: SWINGING; Usage Design: SPECIFIC; Mounting Hole Quantity: 1 SECOND GROUP. 20 total characteristics are documented in the Federal Logistics Information System.
NSN 3815-00-641-6931 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.