The Key,socket Head Screw, cataloged under National Stock Number 5120-00-200-1018, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is H-K Connecticut Holding Company. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-00-200-1018 |
| Primary Part Number | 564P |
| Item Name | Key,socket Head Screw |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | H-K Connecticut Holding Company |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Short Arm Length | 0.516 INCHES MINIMUM AND 0.703 INCHES MAXIMUM IN |
| Wrenching Surface Size | 0.078 INCHES NOMINAL BOTH ENDS IN |
| Style Designator | L-HANDLE |
| Long Arm Length | 1.781 INCHES MINIMUM AND 1.968 INCHES MAXIMUM IN |
| Wrenching Surface Shape | HEXAGON SINGLE END EXTERNAL |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 564P PRIMARY | H-K Connecticut Holding Company (USA) |
NSN 5120-00-200-1018 is a Key,socket Head Screw, manufactured by H-K Connecticut Holding Company, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-00-200-1018 has 1 manufacturer part number on file: 564P (H-K Connecticut Holding Company).
Key specifications for 564P: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Short Arm Length: 0.516 INCHES MINIMUM AND 0.703 INCHES MAXIMUM IN; Wrenching Surface Size: 0.078 INCHES NOMINAL BOTH ENDS IN; Style Designator: L-HANDLE. 8 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.