The Wrench,open End, cataloged under National Stock Number 5120-01-581-3391, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Apex Tool Group, Llc Dba Nicholson. Government technical data includes 13 verified specifications, 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-581-3391 |
| Primary Part Number | 53-052 |
| Item Name | Wrench,open End |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | Apex Tool Group, Llc Dba Nicholson |
| Status | ACTIVE |
| Large End Outside Diameter | 31.3 MILLIMETERS NOMINAL MM |
| Style Designator | DOUBLE HEAD |
| Wrenching Surface Size | 12.0 MILLIMETERS NOMINAL FIRST END MM |
| Small End Head Angle | 15.0 DEGREES NOMINAL |
| Surface Treatment | CHROMIUM OVERALL |
| Wrenching Surface Size | 13.0 MILLIMETERS NOMINAL SECOND END MM |
| Small End Outside Diameter | 27.4 MILLIMETERS NOMINAL MM |
| Wrenching Surface Shape | OVAL BOTH ENDS INTERNAL |
| Small End Head Thickness | 6.3 MILLIMETERS NOMINAL MM |
| Material | STEEL OVERALL |
| Large End Head Angle | 15.0 DEGREES NOMINAL |
| Features Provided | FULL POLISH |
| Large End Head Thickness | 6.3 MILLIMETERS NOMINAL MM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5120-01-581-3391 is a Wrench,open End, manufactured by Apex Tool Group, Llc Dba Nicholson, classified under FSC 5120 (No Item Name Available). Status: active.
NSN 5120-01-581-3391 has 3 cross-referenced part numbers: 53-052 (Apex Tool Group, Llc Dba Nicholson), 53-052 (Armstrong Bros Tool Co), 53-052 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.).
There are 8 known substitutes for 5120-01-581-3391: 5210-00-288-7890, 5365-00-593-9136, 1680-00-874-7532 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 53-052: Large End Outside Diameter: 31.3 MILLIMETERS NOMINAL MM; Style Designator: DOUBLE HEAD; Wrenching Surface Size: 12.0 MILLIMETERS NOMINAL FIRST END MM; Small End Head Angle: 15.0 DEGREES NOMINAL. 14 total characteristics are documented in the Federal Logistics Information System.