# NSN 6635-01-659-4381: Tester, Material Hardness

NSN 6635-01-659-4381 (also written 6635016594381; NIIN 01-659-4381) is a tester, material hardness in Federal Supply Class 6635, Physical Properties Testing and Inspection Equipment. 3 manufacturer part numbers from 1 supplier are on record. No purchases are on record yet.

## Identification

- NSN: 6635-01-659-4381 (6635016594381)
- NIIN: 01-659-4381 (016594381)
- Item name: TESTER,MATERIAL HARDNESS
- 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 Z: a commercial, nondevelopmental or off-the-shelf item. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AMQY | INSTALLATION DESIGN | FLOOR |
| BCKS | VERTICAL CAPACITY | MILLIMETERS 254.0 |
| CTJS | UNPACKAGED UNIT WEIGHT | KILOGRAMS MAXIMUM 107.0 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | WILSON ROCKWELL 2000 |
| FEAT | SPECIAL FEATURES | HARDNESS SCALES: HRA, HRB, HRC, HRD, HRE, HRF, HRG, HRH, HRK, HRL, HRM, HRP, HRR, HRS, HRV, 15N, 30N, 45N, 15T, 30T, 45T, 15W, 30W, 45W, 15X, 30X, 45X, 15Y, 45Y; ELECTRONIC CLOSED-LOOP LOADCELL; STANDARDS COMPLIANT ASTM E18, B254, ISO 6508, JIS Z2245; |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 2002T | 09410 | BUEHLER LTD. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| RH2150 | 09410 | BUEHLER LTD. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| WH2002T | 09410 | BUEHLER LTD. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=6635016594381&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6635016594381
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- 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/6635-01-659-4381/
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