# NSN 6635-01-500-5490: Probe, Eddy Current

NSN 6635-01-500-5490 (also written 6635015005490; NIIN 01-500-5490) is a probe, eddy current in Federal Supply Class 6635, Physical Properties Testing and Inspection Equipment. 3 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 6635-01-500-5490 (6635015005490)
- NIIN: 01-500-5490 (015005490)
- Item name: PROBE,EDDY CURRENT
- Federal Supply Class: [FSC 6635 Physical Properties Testing and Inspection Equipment](https://nsnexplorer.com/fsc/6635/)
- Federal Supply Group: [FSG 66](https://nsnexplorer.com/group/66/)
- Acquisition method suffix code: AMSC D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ADAV | OVERALL DIAMETER | INCHES MINIMUM 0.250 AND INCHES MAXIMUM 0.281 |
| AGAV | END ITEM IDENTIFICATION | SPITFIRE,MINIMITE,HOCKING AND ROHMANN SCANNERS; F/A 22 RAPTOR |
| ARET | CONDUCTOR ATTACHMENT METHOD | 4 PIN FISCHER CONNECTOR |
| FEAT | 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 |
| FTLD | 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 |
| RTSE | RELATIONSHIP TO SIMILAR EQUIPMENT | SIMILAR TO SPO-5000 BUT EXPANDED TO LARGER DIAMETER |
| TMDN | TYPE/MODEL DESIGNATION | SPO-5965 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 9219981 | 1KY21 | OLYMPUS AMERICA INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 9219981 | 29192 | OLYMPUS SCIENTIFIC SOLUTIONS TECHNOLOGIES INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 9219981 | 9DV74 | EVIDENT SCIENTIFIC, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-23 | [SPE4A626D5071/SPE4A626F483S](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6635015005490) | PROBE, EDDY CURRENT | EVIDENT SCIENTIFIC, INC. | $10,830.05 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=6635015005490&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6635015005490
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/6635-01-500-5490/
JSON: https://nsnexplorer.com/api/nsn/6635-01-500-5490.json