The Key,socket Head Screw, cataloged under National Stock Number 5120-01-652-3597, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Eklind Tool Co. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-652-3597 |
| Primary Part Number | 91109 |
| Item Name | Key,socket Head Screw |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Eklind Tool Co |
| Status | ACTIVE |
| Wrenching Surface Size | 0.141 INCHES NOMINAL SINGLE END IN |
| Style Designator | SCREWDRIVER HANDLE |
| Blade Length | 5.400 INCHES NOMINAL IN |
| Features Provided | BALL END |
| Specification/standard Data | 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Wrenching Surface Shape | HEXAGON SINGLE END EXTERNAL |
| Surface Treatment | OXIDE WRENCHING SURFACE |
| Material | PLASTIC HANDLE |
| Material | STEEL WRENCHING SURFACE |
| 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 |
|---|---|
| 91109 PRIMARY | Eklind Tool Co (USA) |
| Reference | Meaning |
|---|---|
| B18.3 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
NSN 5120-01-652-3597 is a Key,socket Head Screw, manufactured by Eklind Tool Co, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-652-3597 has 1 manufacturer part number on file: 91109 (Eklind Tool Co).
1 possible match (shared part number, not a government interchangeability claim): 5140-01-694-6710. Verify interchangeability with system specifications before substitution.
Key specifications for 91109: Wrenching Surface Size: 0.141 INCHES NOMINAL SINGLE END IN; Style Designator: SCREWDRIVER HANDLE; Blade Length: 5.400 INCHES NOMINAL IN; Features Provided: BALL END. 9 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.