The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-157-4700, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Eg and G Wakefield Engineering. Government technical data includes 14 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5999-01-157-4700 |
| Primary Part Number | 680-100-A |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — No Item Name Available |
| Manufacturer | Eg and G Wakefield Engineering |
| Status | CANCELLED |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) FIRST MOUNTING FACILITY |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) SECOND MOUNTING FACILITY |
| Material | ALUMINUM ALLOY 6063 |
| Unthreaded Mounting Hole Diameter | 0.220 INCHES NOMINAL SECOND MOUNTING FACILITY IN |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE |
| Unthreaded Mounting Hole Diameter | 0.190 INCHES NOMINAL FIRST MOUNTING FACILITY IN |
| Surface Treatment | ANODIZE |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) FIRST MOUNTING FACILITY |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) SECOND MOUNTING FACILITY |
| Material | ALUMINUM ALLOY 6063 |
| Unthreaded Mounting Hole Diameter | 0.220 INCHES NOMINAL SECOND MOUNTING FACILITY IN |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE |
| Unthreaded Mounting Hole Diameter | 0.190 INCHES NOMINAL FIRST MOUNTING FACILITY IN |
| Surface Treatment | ANODIZE |
| Acquisition Status | CANCELLED |
| Successor | 5999-01-209-0652 |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 680-100-A | Eg and G Wakefield Engineering (USA) |
| 680-1-0A | Eg and G Wakefield Engineering (USA) |
| 539197-3 | Raytheon Company Dba Raytheon (USA) |
| 10273970-2 | Us Army Aviation and Missile Command (USA) |
NSN 5999-01-157-4700 is a Heat Sink,electrical-Electronic, manufactured by Eg and G Wakefield Engineering, classified under FSC 5999 (No Item Name Available). Status: cancelled.
NSN 5999-01-157-4700 has 4 cross-referenced part numbers: 680-100-A (Eg and G Wakefield Engineering), 680-1-0A (Eg and G Wakefield Engineering), 539197-3 (Raytheon Company Dba Raytheon), 10273970-2 (Us Army Aviation and Missile Command).
There are 3 known substitutes for 5999-01-157-4700: 5999-01-025-9326, 5999-01-209-0652, 3120-00-662-8443. Verify interchangeability with system specifications before substitution.
Key specifications for 680-100-A: Overall Width: 1.810 INCHES NOMINAL IN; Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) FIRST MOUNTING FACILITY; Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SECOND MOUNTING FACILITY; Material: ALUMINUM ALLOY 6063. 20 total characteristics are documented in the Federal Logistics Information System.
NSN 5999-01-157-4700 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.