The Penetrometer, cataloged under National Stock Number 6635-01-588-0509, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. The manufacturer of record is Kessler Soils Engineering Products, Inc. Dba Kessler Soils Engineering Products Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6635-01-588-0509 |
| Primary Part Number | KHS-4210 |
| Item Name | Penetrometer |
| FSC / FSG | 6635 / 66 — Physical Properties Testing and Inspection |
| Manufacturer | Kessler Soils Engineering Products, Inc. Dba Kessler Soils Engineering Products Inc |
| Status | ACTIVE |
| Design Type | CYLINDRICAL |
| 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 |
|---|---|
| KHS-4210 PRIMARY | Kessler Soils Engineering Products, Inc. Dba Kessler Soils Engineering Products Inc (USA) |
| Reference | Meaning |
|---|---|
| H-4120 | 5/9 Secondary reference Kessler Soils Engineering Products, Inc. Dba Kessler Soils Engineering Products Inc |
NSN 6635-01-588-0509 is a Penetrometer, manufactured by Kessler Soils Engineering Products, Inc. Dba Kessler Soils Engineering Products Inc, classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
NSN 6635-01-588-0509 has 1 manufacturer part number on file: KHS-4210 (Kessler Soils Engineering Products, Inc. Dba Kessler Soils Engineering Products Inc).
Key specifications for KHS-4210: Design Type: CYLINDRICAL; Part Name Assigned by Controlling Agency: USACE CONE PENETROMETER; End Item Identification: 6635-01-582-3197, SOIL TEST SET. 1 specification is 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.