The Socket,socket Wrench, cataloged under National Stock Number 5120-01-550-7771, 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 10 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-550-7771 |
| Primary Part Number | 38-106 |
| Item Name | Socket,socket Wrench |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | Apex Tool Group, Llc Dba Nicholson |
| Status | ACTIVE |
| Drive End Outside Diameter | 16.7 MILLIMETERS NOMINAL MM |
| Wrenching End Opening Depth | 4.8 MILLIMETERS NOMINAL MM |
| Drive End Shape | SQUARE SINGLE END INTERNAL |
| Style Designator | INTERNAL-INTERNAL |
| Wrenching Surface Size | 6.0 MILLIMETERS NOMINAL SINGLE END MM |
| Drive Surface Size | 0.375 INCHES NOMINAL SINGLE END IN |
| Features Provided | MANUAL TOOL |
| Surface Treatment | CHROMIUM OVERALL |
| Wrenching Surface Shape | 12 POINT SINGLE END INTERNAL |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5120-01-550-7771 is a Socket,socket Wrench, manufactured by Apex Tool Group, Llc Dba Nicholson, classified under FSC 5120 (No Item Name Available). Status: active.
NSN 5120-01-550-7771 has 3 cross-referenced part numbers: 38-106 (Apex Tool Group, Llc Dba Nicholson), 38-106 (Armstrong Bros Tool Co), 38-106 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.).
There are 6 known substitutes for 5120-01-550-7771: 7490-00-955-8299, 5310-01-153-1381, 6510-01-243-5897 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 38-106: Overall Length: 23.8 MILLIMETERS NOMINAL MM; Drive End Outside Diameter: 16.7 MILLIMETERS NOMINAL MM; Wrenching End Opening Depth: 4.8 MILLIMETERS NOMINAL MM; Drive End Shape: SQUARE SINGLE END INTERNAL. 11 total characteristics are documented in the Federal Logistics Information System.