# NSN 6635-00-966-5245: Ultrasonic Test Block Set

NSN 6635-00-966-5245 (also written 6635009665245; NIIN 00-966-5245) is an ultrasonic test block set in Federal Supply Class 6635, Physical Properties Testing and Inspection Equipment. 11 manufacturer part numbers from 5 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 6635-00-966-5245 (6635009665245)
- NIIN: 00-966-5245 (009665245)
- Item name: ULTRASONIC TEST BLOCK SET
- 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 P: the government does not own the rights to the data needed for more sources. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| TEXT | GENERAL CHARACTERISTICS ITEM DESCRIPTION | 10 ULTRASONIC STANDARD REFERENCE BLOCKS FOR AREA AMPLITUDE RELATIONSHIP,1 BLOCK EA W/0.047 IN.,0.078 IN.,0.125 IN. FLAT BOTTOM HOLES AT A METAL DISTANCE OF 3 IN.; 7 BLOCKS FOR DISTANCE AMPLITUDE,1 BLOCK EA W/0.078 IN. FLAT BOTTOM HOLES AT METAL DISTANCES OF 0.125 IN.,0.250 IN.,0.500 IN.,0.750 IN.,1.500 IN.,6.000 IN.,AND 1 BLOCK W/0.125 IN. FLAT BOTTOM HOLE AT 6.000 IN. METAL DISTANCE |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 107S | 1KY21 | OLYMPUS AMERICA INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 107S | 29192 | OLYMPUS SCIENTIFIC SOLUTIONS TECHNOLOGIES INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 57A4243 | 29192 | OLYMPUS SCIENTIFIC SOLUTIONS TECHNOLOGIES INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 57A4243-16 | 1KY21 | OLYMPUS AMERICA INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 57A4243-16 | 29192 | OLYMPUS SCIENTIFIC SOLUTIONS TECHNOLOGIES INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 601-1001G1/4340 | 63991 | TRIENCO INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 6635PL0781439 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| ASTME-428 | 29884 | RAY-CHECK MANUFACTURING, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| DAA-105 | 29884 | RAY-CHECK MANUFACTURING, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| DAA-10S | 29884 | RAY-CHECK MANUFACTURING, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| TB6100-2 | 1KY21 | OLYMPUS AMERICA INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-22 | [SPE4A626PM667](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6635009665245) | ULTRASONIC TEST BLO | NEWCO INC | $12,495.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=6635009665245&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6635009665245
- 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/6635-00-966-5245/
JSON: https://nsnexplorer.com/api/nsn/6635-00-966-5245.json