The Key,socket Head Screw, cataloged under National Stock Number 5120-00-189-2981, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Ngk Metals Corporation Dba N G K Berylco. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 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 | 5120-00-189-2981 |
| Primary Part Number | L-15 |
| Item Name | Key,socket Head Screw |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | Ngk Metals Corporation Dba N G K Berylco |
| Status | ACTIVE |
| Short Arm Length | 2.250 INCHES NOMINAL IN |
| Wrenching Surface Size | 0.688 INCHES NOMINAL BOTH ENDS IN |
| Features Provided | NONMAGNETIC AND NONSPARKING |
| Wrenching Surface Shape | HEXAGON BOTH ENDS EXTERNAL |
| Material | COPPER ALLOY OVERALL |
| Long Arm Length | 7.250 INCHES NOMINAL IN |
| Style Designator | L-HANDLE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| W-1050-U | Ampco Metal Inc. Dba Ampco Metal Inc (USA) |
| L-15-2564 | Ngk Metals Corporation Dba N G K Berylco (USA) |
| L-15 PRIMARY | Ngk Metals Corporation Dba N G K Berylco (USA) |
| A-A-2477 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| W-1050-U PRIMARY | Ampco Partners, Ltd. Dba Ampco Safety Tools (USA) |
| MIL-K-21120 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5120-00-189-2981 is a Key,socket Head Screw, manufactured by Ngk Metals Corporation Dba N G K Berylco, classified under FSC 5120 (No Item Name Available). Status: active.
NSN 5120-00-189-2981 has 6 cross-referenced part numbers: W-1050-U (Ampco Metal Inc. Dba Ampco Metal Inc), L-15-2564 (Ngk Metals Corporation Dba N G K Berylco), L-15 (Ngk Metals Corporation Dba N G K Berylco), A-A-2477 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), W-1050-U (Ampco Partners, Ltd. Dba Ampco Safety Tools) and 1 more.
There are 12 known substitutes for 5120-00-189-2981: 5910-00-112-3435, 3120-00-148-7743, 4720-00-164-3942 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for L-15: Short Arm Length: 2.250 INCHES NOMINAL IN; Overall Length: 7.938 INCHES NOMINAL IN; Wrenching Surface Size: 0.688 INCHES NOMINAL BOTH ENDS IN; Features Provided: NONMAGNETIC AND NONSPARKING. 8 total characteristics are documented in the Federal Logistics Information System.