The Probe,eddy Current, cataloged under National Stock Number 6635-01-500-5490, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. The manufacturer of record is Evident Scientific, Inc.. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6635-01-500-5490 |
| Primary Part Number | 9219981 |
| Item Name | Probe,eddy Current |
| FSC / FSG | 6635 / 66 — Physical Properties Testing and Inspection |
| Manufacturer | Evident Scientific, Inc. |
| Status | ACTIVE |
| Relationship to Similar Equipment | SIMILAR TO SPO-5000 BUT EXPANDED TO LARGER DIAMETER |
| Overall Diameter | 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Conductor Attachment Method | 4 PIN FISCHER CONNECTOR |
| Functional Description | DESIGNED TO ALLOW THE USE OF THE SAME PROBE WHEN HOLES REAMED LARGER DIAMETER.ALSO CHECK UNUSUAL HOLE SIZE WHEN A FIXED SIZE PROBE IS UNAVAILABLE |
| Type/model Designation | SPO-5965 |
| 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 |
|---|---|
| 9219981 PRIMARY | Evident Scientific, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 9219981 | 3/9 Design control — primary reference Olympus Scientific Solutions Technologies Inc. |
| 9219981 | 5/9 Secondary reference Olympus America Inc |
NSN 6635-01-500-5490 is a Probe,eddy Current, manufactured by Evident Scientific, Inc., classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
NSN 6635-01-500-5490 has 1 manufacturer part number on file: 9219981 (Evident Scientific, Inc.).
Key specifications for 9219981: Relationship to Similar Equipment: SIMILAR TO SPO-5000 BUT EXPANDED TO LARGER DIAMETER; Overall Diameter: 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN; Conductor Attachment Method: 4 PIN FISCHER CONNECTOR; Special Features: PLASTIC TIP,SS BACK SHELL,2 INCH WORKING LENGTH.USES REFLECTION DIFFERENTAL TYPE COIL OPERATING IN 500 KHZ TO3 MHZ. SUITABLE FOR ALUMINUM STRUCTURE AND LOW CONDUCTIVITY MATERIALS KHz. 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.