The Penetrometer, cataloged under National Stock Number 6635-00-689-9552, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. The manufacturer of record is Humboldt Scientific, Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6635-00-689-9552 |
| Primary Part Number | H-4132 |
| Item Name | Penetrometer |
| FSC / FSG | 6635 / 66 — Physical Properties Testing and Inspection |
| Manufacturer | Humboldt Scientific, Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| H-4132 | Humboldt Scientific, Inc. (USA) |
| Reference | Meaning |
|---|---|
| CT421 | 5/9 Secondary reference U.S. Government activity |
| 38-2695 | 3/2 Design control — primary reference U.S. Government activity |
| CE2785 | 5/9 Secondary reference Testlab Div of G D I Inc |
NSN 6635-00-689-9552 is a Penetrometer, manufactured by Humboldt Scientific, Inc., classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
NSN 6635-00-689-9552 has 1 manufacturer part number on file: H-4132 (Humboldt Scientific, Inc.).
Key specifications for H-4132: Special Features: POCKET TYPE, 1/20 SQ. IN. STAINLESS STEEL NEEDLE WILL PENETRATE 1 IN. INTO CONCRETE; PENETRATING DEPTH IS INSCRIBED ON SHAFT; POINT OF INITIAL SET IS REACHED WHEN PENETROMETER PENETRATION IS 500 PSI; SCALE W/CALIBRATED RANGE 0 TO 700 PSI; CAN BE USED W/ASTM C403 TEST IN. 0 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.