The Key,socket Head Screw, cataloged under National Stock Number 5120-01-043-2279, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 9 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 | 5120-01-043-2279 |
| Primary Part Number | B18.3 |
| Item Name | Key,socket Head Screw |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Features Provided | BALL END |
| Material | PLASTIC HANDLE |
| Blade Length | 3.300 INCHES NOMINAL IN |
| Wrenching Surface Shape | HEXAGON SINGLE END EXTERNAL |
| Surface Treatment | OXIDE OVERALL |
| Style Designator | SCREWDRIVER HANDLE |
| Material | STEEL WRENCHING SURFACE |
| Wrenching Surface Size | 0.063 INCHES NOMINAL SINGLE END IN |
| Specification/standard Data | 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5120-01-043-2279 is a Key,socket Head Screw, manufactured by The American Society of Mechanical Engineers, classified under FSC 5120 (No Item Name Available). Status: active.
NSN 5120-01-043-2279 has 6 cross-referenced part numbers: B18.3 (The American Society of Mechanical Engineers), HBL4 (Klein Tools Inc), 10603 (Bondhus Corp), HBL4 (Vaco Products Co), 7014622-14 (Honeywell Intl Dba Honeywell Div Business and General Aviation) and 1 more.
There are 12 known substitutes for 5120-01-043-2279: 5110-00-223-1100, 5133-00-233-6463, 5133-00-247-2751 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for B18.3: Features Provided: BALL END; Material: PLASTIC HANDLE; Blade Length: 3.300 INCHES NOMINAL IN; Wrenching Surface Shape: HEXAGON SINGLE END EXTERNAL. 10 total characteristics are documented in the Federal Logistics Information System.