The Key,socket Head Screw, cataloged under National Stock Number 5120-00-107-0038, 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. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-00-107-0038 |
| Primary Part Number | LN21 |
| Item Name | Key,socket Head Screw |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | Apex Tool Group |
| Status | ACTIVE |
| Blade Length | 3.440 INCHES NOMINAL IN |
| Surface Treatment | OXIDE OVERALL |
| Specification/standard Data | 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Wrenching Surface Shape | HEXAGON SINGLE END EXTERNAL |
| Wrenching Surface Size | 0.063 INCHES NOMINAL SINGLE END IN |
| Material | PLASTIC HANDLE |
| Style Designator | SCREWDRIVER HANDLE |
| Material | STEEL WRENCHING SURFACE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| LN21 | Apex Tool Group (USA) |
| LN21 | Apex Tool Group, Llc (USA) |
| B18.3 | The American Society of Mechanical Engineers (USA) |
| A-A-2926 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| 580R122H02 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| LN21 | Cooper Tools Pty Ltd (AUS) |
NSN 5120-00-107-0038 is a Key,socket Head Screw, manufactured by Apex Tool Group, classified under FSC 5120 (No Item Name Available). Status: active.
NSN 5120-00-107-0038 has 6 cross-referenced part numbers: LN21 (Apex Tool Group), LN21 (Apex Tool Group, Llc), B18.3 (The American Society of Mechanical Engineers), A-A-2926 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 580R122H02 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp) and 1 more.
There are 12 known substitutes for 5120-00-107-0038: 5120-00-113-3432, 5120-00-142-5333, 5120-00-203-5107 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for LN21: Overall Length: 6.625 INCHES NOMINAL IN; Blade Length: 3.440 INCHES NOMINAL IN; Surface Treatment: OXIDE OVERALL; Specification/standard Data: 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 9 total characteristics are documented in the Federal Logistics Information System.