The Key,socket Head Screw, cataloged under National Stock Number 5120-01-307-1091, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-307-1091 |
| Primary Part Number | HLH105-078 |
| Item Name | Key,socket Head Screw |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Wrenching Surface Size | 0.078 INCHES NOMINAL SINGLE END IN |
| Style Designator | SCREWDRIVER HANDLE |
| Wrenching Surface Shape | HEXAGON SINGLE END EXTERNAL |
| Functional Description | USED WITH HI-SHEAR NO. HLH101-250 RATCHET WRENCH ASSEMBLY TO INSTALL HI-LOK AND HI-TIGUE FASTENERS |
| 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 |
|---|---|
| HLH105-078 PRIMARY | Hi-Shear Corporation (USA) |
| HLH105-078 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| Reference | Meaning |
|---|---|
| HLH105-6 | 5/9 Secondary reference Hi-Shear Corporation |
NSN 5120-01-307-1091 is a Key,socket Head Screw, manufactured by Hi-Shear Corporation, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-307-1091 has 2 manufacturer part numbers on file: HLH105-078 (Hi-Shear Corporation), HLH105-078 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc).
Key specifications for HLH105-078: Wrenching Surface Size: 0.078 INCHES NOMINAL SINGLE END IN; Style Designator: SCREWDRIVER HANDLE; Wrenching Surface Shape: HEXAGON SINGLE END EXTERNAL; Functional Description: USED WITH HI-SHEAR NO. HLH101-250 RATCHET WRENCH ASSEMBLY TO INSTALL HI-LOK AND HI-TIGUE FASTENERS. 5 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.