The Key,socket Head Screw, cataloged under National Stock Number 5120-00-189-2980, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Ampco Partners, Ltd. Dba Ampco Safety Tools. 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 | 5120-00-189-2980 |
| Primary Part Number | W-1050-M |
| Item Name | Key,socket Head Screw |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | Ampco Partners, Ltd. Dba Ampco Safety Tools |
| Status | ACTIVE |
| Style Designator | L-HANDLE |
| Wrenching Surface Shape | HEXAGON BOTH ENDS EXTERNAL |
| Material | COPPER ALLOY OVERALL |
| Features Provided | NONMAGNETIC AND NONSPARKING |
| Wrenching Surface Size | 0.750 INCHES NOMINAL BOTH ENDS IN |
| Short Arm Length | 2.250 INCHES NOMINAL IN |
| Long Arm Length | 7.250 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| W-1050-M PRIMARY | Ampco Partners, Ltd. Dba Ampco Safety Tools (USA) |
| L-16-2590 | Ngk Metals Corporation Dba N G K Berylco (USA) |
| W-1050-M | Ampco Metal Inc. Dba Ampco Metal Inc (USA) |
| L-16 PRIMARY | Ngk Metals Corporation Dba N G K Berylco (USA) |
| MIL-K-21120 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| A-A-2477 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
NSN 5120-00-189-2980 is a Key,socket Head Screw, manufactured by Ampco Partners, Ltd. Dba Ampco Safety Tools, classified under FSC 5120 (No Item Name Available). Status: active.
NSN 5120-00-189-2980 has 6 cross-referenced part numbers: W-1050-M (Ampco Partners, Ltd. Dba Ampco Safety Tools), L-16-2590 (Ngk Metals Corporation Dba N G K Berylco), W-1050-M (Ampco Metal Inc. Dba Ampco Metal Inc), L-16 (Ngk Metals Corporation Dba N G K Berylco), MIL-K-21120 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.
There are 12 known substitutes for 5120-00-189-2980: 4730-00-011-2304, 3040-00-067-9045, 4730-00-142-1855 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for W-1050-M: Style Designator: L-HANDLE; Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL; Material: COPPER ALLOY OVERALL; Features Provided: NONMAGNETIC AND NONSPARKING. 8 total characteristics are documented in the Federal Logistics Information System.