The Extensometer, cataloged under National Stock Number 6635-01-679-4374, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. The manufacturer of record is Pcb Piezotronics, Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6635-01-679-4374 |
| Primary Part Number | 225C |
| Item Name | Extensometer |
| FSC / FSG | 6635 / 66 — Physical Properties Testing and Inspection |
| Manufacturer | Pcb Piezotronics, 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 |
|---|---|
| 225C PRIMARY | Pcb Piezotronics, Inc. (USA) |
NSN 6635-01-679-4374 is a Extensometer, manufactured by Pcb Piezotronics, Inc., classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
NSN 6635-01-679-4374 has 1 manufacturer part number on file: 225C (Pcb Piezotronics, Inc.).
Key specifications for 225C: Special Features: MEASUREMENT RANGE: (COMPRESSION) 35000 LB, SENSITIVITY: (PLUS 15 DEGREES) 0.14 MV/LB, LOW FREQUENCY RESPONSE: (-5 PERCENT) 0.0003 HZ, UPPER FREQUENCY LIMIT: 6000 HZ, TEMPERATURE RANGE: MINUS 65 TO PLUS 250 DEGREES F, MOUNTING "THREAD: 0.75 - 16 FEMALE LBS; Part Name Assigned by Controlling Agency: FORCE LINK. 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.