The Testing Machine,vibration Fatigu, cataloged under National Stock Number 6635-01-321-1669, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. The manufacturer of record is Trig-Tek, Incorporated. Government technical data includes 2 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6635-01-321-1669 |
| Primary Part Number | 645A |
| Item Name | Testing Machine,vibration Fatigu |
| FSC / FSG | 6635 / 66 — Physical Properties Testing and Inspection |
| Manufacturer | Trig-Tek, Incorporated |
| Status | ACTIVE |
| General Characteristics Item Description | 115.0 OR 230.0 VRMS,50.0-400.0 HZ; 8.750 IN H,19.000 IN W,14.500 IN D; 30.0 LBS; WILL ACCOMODATE UP TO 4 VELOCITY TRANSDUCERS AND 4 ACCELEROMETERS; BUS INTERFACE OPTION ALLOWS FOR REMOTE COMPUTER OPERATION AND TRANSFER OF DATA TO A COMPUTER REMOTE STATION LBS |
| Functional Description | DESIGNED FOR USE IN ENGINE TEST STANDS FOR MONITORING AND ANALYZING VIBRATION DATA FROM TURBOJET,TURBOFAN AND TURBOPROP ENGINES |
| 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 |
|---|---|
| 645A PRIMARY | Trig-Tek, Incorporated (USA) |
NSN 6635-01-321-1669 is a Testing Machine,vibration Fatigu, manufactured by Trig-Tek, Incorporated, classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
NSN 6635-01-321-1669 has 1 manufacturer part number on file: 645A (Trig-Tek, Incorporated).
Key specifications for 645A: General Characteristics Item Description: 115.0 OR 230.0 VRMS,50.0-400.0 HZ; 8.750 IN H,19.000 IN W,14.500 IN D; 30.0 LBS; WILL ACCOMODATE UP TO 4 VELOCITY TRANSDUCERS AND 4 ACCELEROMETERS; BUS INTERFACE OPTION ALLOWS FOR REMOTE COMPUTER OPERATION AND TRANSFER OF DATA TO A COMPUTER REMOTE STATION LBS; Functional Description: DESIGNED FOR USE IN ENGINE TEST STANDS FOR MONITORING AND ANALYZING VIBRATION DATA FROM TURBOJET,TURBOFAN AND TURBOPROP ENGINES; End Item Identification: T-21 ACFT ENGINE TEST STAND. 2 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.