The Wrench,open End, cataloged under National Stock Number 5120-00-520-3904, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Valcor Engineering Corporation. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 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: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-00-520-3904 |
| Primary Part Number | 255161 |
| Item Name | Wrench,open End |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | Valcor Engineering Corporation |
| Status | ACTIVE |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 255161 | Kidde-Fenwal, Llc (USA) |
| 4S94523-101A | Lockheed Martin Corp (USA) |
| 255161 PRIMARY | Valcor Engineering Corporation (USA) |
NSN 5120-00-520-3904 is a Wrench,open End, manufactured by Valcor Engineering Corporation, classified under FSC 5120 (No Item Name Available). Status: active.
NSN 5120-00-520-3904 has 3 cross-referenced part numbers: 255161 (Kidde-Fenwal, Llc), 4S94523-101A (Lockheed Martin Corp), 255161 (Valcor Engineering Corporation).
There are 3 known substitutes for 5120-00-520-3904: 5306-00-145-7079, 2590-01-054-5203, 4730-01-324-2706. Verify interchangeability with system specifications before substitution.
Key specifications for 255161: Material: STEEL OVERALL. 1 total characteristics are documented in the Federal Logistics Information System.