The Socket,socket Wrench, cataloged under National Stock Number 5120-01-581-0846, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Armstrong Bros Tool Co. Government technical data includes 11 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-581-0846 |
| Primary Part Number | 38-121 |
| Item Name | Socket,socket Wrench |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | Armstrong Bros Tool Co |
| Status | ACTIVE |
| Wrenching End Outside Diameter | 28.5 MILLIMETERS NOMINAL MM |
| Surface Treatment | CHROMIUM OVERALL |
| Drive Surface Size | 0.375 INCHES NOMINAL SINGLE END IN |
| Wrenching Surface Shape | 12 POINT SINGLE END INTERNAL |
| Drive End Outside Diameter | 28.5 MILLIMETERS NOMINAL MM |
| Style Designator | INTERNAL-INTERNAL |
| Features Provided | MANUAL TOOL |
| Drive End Shape | SQUARE SINGLE END INTERNAL |
| Wrenching Surface Size | 21.0 MILLIMETERS NOMINAL SINGLE END MM |
| Wrenching End Opening Depth | 18.1 MILLIMETERS NOMINAL MM |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5120-01-581-0846 is a Socket,socket Wrench, manufactured by Armstrong Bros Tool Co, classified under FSC 5120 (No Item Name Available). Status: active.
NSN 5120-01-581-0846 has 3 cross-referenced part numbers: 38-121 (Armstrong Bros Tool Co), 38-121 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 38-121 (Apex Tool Group, Llc Dba Nicholson).
There are 7 known substitutes for 5120-01-581-0846: 4920-00-300-1299, 4730-00-627-3418, 5950-00-972-3245 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 38-121: Wrenching End Outside Diameter: 28.5 MILLIMETERS NOMINAL MM; Overall Length: 30.5 MILLIMETERS NOMINAL MM; Surface Treatment: CHROMIUM OVERALL; Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN. 12 total characteristics are documented in the Federal Logistics Information System.