The Key,socket Head Screw, cataloged under National Stock Number 5120-00-189-2988, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 8 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 | 5120-00-189-2988 |
| Primary Part Number | L-8-2558 |
| 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 |
| Long Arm Length | 3.875 INCHES NOMINAL IN |
| Style Designator | L-HANDLE |
| Specification/standard Data | 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Features Provided | NONMAGNETIC AND NONSPARKING |
| Wrenching Surface Size | 0.250 INCHES NOMINAL BOTH ENDS IN |
| Wrenching Surface Shape | HEXAGON BOTH ENDS EXTERNAL |
| Material | COPPER ALLOY OVERALL |
| Short Arm Length | 1.062 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| L-8-2558 | Ngk Metals Corporation Dba N G K Berylco (USA) |
| L-8 | Ngk Metals Corporation Dba N G K Berylco (USA) |
| 6522A18 | Mcmaster-Carr Supply Co (USA) |
| A-A-2477 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| W-1050-E | Ampco Metal Inc. Dba Ampco Metal Inc (USA) |
| MIL-K-21120 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| B18.3 | The American Society of Mechanical Engineers (USA) |
| DH 0064 | Ampco Partners, Ltd. Dba Ampco Safety Tools (USA) |
| NC1700-11 | Dresser Industries Inc Leroi Div (USA) |
| W-1050-E | Ampco Partners, Ltd. Dba Ampco Safety Tools (USA) |
NSN 5120-00-189-2988 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 5120-00-189-2988 has 10 cross-referenced part numbers: L-8-2558 (Ngk Metals Corporation Dba N G K Berylco), L-8 (Ngk Metals Corporation Dba N G K Berylco), 6522A18 (Mcmaster-Carr Supply Co), A-A-2477 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), W-1050-E (Ampco Metal Inc. Dba Ampco Metal Inc) and 5 more.
There are 12 known substitutes for 5120-00-189-2988: 9515-00-130-3536, 5330-00-179-0972, 5120-00-189-2979 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for L-8-2558: Overall Length: 4.125 INCHES NOMINAL IN; Long Arm Length: 3.875 INCHES NOMINAL IN; Style Designator: L-HANDLE; Specification/standard Data: 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 9 total characteristics are documented in the Federal Logistics Information System.