The Key,socket Head Screw, cataloged under National Stock Number 5120-01-644-3448, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Eklind Tool Co. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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 | 5120-01-644-3448 |
| Primary Part Number | 15522 |
| Item Name | Key,socket Head Screw |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | Eklind Tool Co |
| Status | ACTIVE |
| Long Arm Length | 4.750 INCHES NOMINAL IN |
| Short Arm Length | 1.500 INCHES NOMINAL IN |
| Style Designator | L-HANDLE |
| Wrenching Surface Shape | HEXAGON BOTH ENDS EXTERNAL |
| Wrenching Surface Size | 11.0 MILLIMETERS NOMINAL BOTH ENDS MM |
| Specification/standard Data | 05047-ASME B18.3.2M PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Features Provided | SHORT SERIES |
| Surface Treatment | OXIDE OVERALL |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5120-01-644-3448 is a Key,socket Head Screw, manufactured by Eklind Tool Co, classified under FSC 5120 (No Item Name Available). Status: active.
NSN 5120-01-644-3448 has 2 cross-referenced part numbers: 15522 (Eklind Tool Co), B18.3.2M (The American Society of Mechanical Engineers).
There are 7 known substitutes for 5120-01-644-3448: 5950-00-087-5534, 4330-00-218-5479, 5110-00-253-3167 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 15522: Long Arm Length: 4.750 INCHES NOMINAL IN; Short Arm Length: 1.500 INCHES NOMINAL IN; Style Designator: L-HANDLE; Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL. 9 total characteristics are documented in the Federal Logistics Information System.