The Key,socket Head Screw, cataloged under National Stock Number 5120-00-189-2990, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 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 | 5120-00-189-2990 |
| Primary Part Number | NC3110-346 |
| Item Name | Key,socket Head Screw |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | Dresser Industries Inc Leroi Div |
| Status | ACTIVE |
| Long Arm Length | 2.875 INCHES NOMINAL IN |
| Features Provided | NONMAGNETIC AND NONSPARKING |
| Wrenching Surface Shape | HEXAGON BOTH ENDS EXTERNAL |
| Style Designator | L-HANDLE |
| Material | COPPER ALLOY OVERALL |
| Specification/standard Data | 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Short Arm Length | 0.875 INCHES NOMINAL IN |
| Wrenching Surface Size | 0.188 INCHES NOMINAL BOTH ENDS IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| NC3110-346 | Dresser Industries Inc Leroi Div (USA) |
| W-1050-C | Ampco Metal Inc. Dba Ampco Metal Inc (USA) |
| L-6-2556 | Ngk Metals Corporation Dba N G K Berylco (USA) |
| W-1050-C | Ampco Partners, Ltd. Dba Ampco Safety Tools (USA) |
| 6522A16 | Mcmaster-Carr Supply Co (USA) |
| L-6 | Ngk Metals Corporation Dba N G K Berylco (USA) |
| DH 0048 | Ampco Partners, Ltd. Dba Ampco Safety Tools (USA) |
| W8-3/16 | 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 |
| B18.3 | The American Society of Mechanical Engineers (USA) |
| A-A-2477 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| NC1700-9 | Dresser Industries Inc Leroi Div (USA) |
NSN 5120-00-189-2990 is a Key,socket Head Screw, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 5120 (No Item Name Available). Status: active.
NSN 5120-00-189-2990 has 12 cross-referenced part numbers: NC3110-346 (Dresser Industries Inc Leroi Div), W-1050-C (Ampco Metal Inc. Dba Ampco Metal Inc), L-6-2556 (Ngk Metals Corporation Dba N G K Berylco), W-1050-C (Ampco Partners, Ltd. Dba Ampco Safety Tools), 6522A16 (Mcmaster-Carr Supply Co) and 7 more.
There are 12 known substitutes for 5120-00-189-2990: 6695-00-179-5116, 5120-00-189-2979, 5120-00-189-2980 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for NC3110-346: Overall Length: 3.062 INCHES NOMINAL IN; Long Arm Length: 2.875 INCHES NOMINAL IN; Features Provided: NONMAGNETIC AND NONSPARKING; Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL. 9 total characteristics are documented in the Federal Logistics Information System.