The Timer,assembly Pcb, cataloged under National Stock Number 6645-01-188-5237, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6645-01-188-5237 |
| Primary Part Number | F-543726 |
| Item Name | Timer,assembly Pcb |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| General Characteristics Item Description | USED WITH X-RAY SYSTEM,FIELD; FSCM 57136; MODEL NO. 350AF |
| 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 |
|---|---|
| F-543726 | Raytheon Company (USA) |
| F-543726 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| READINESS SPARE PART ITEM | 5/1 Secondary reference U.S. Government activity |
| F-543726 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 6645-01-188-5237 is a Timer,assembly Pcb, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-01-188-5237 has 2 manufacturer part numbers on file: F-543726 (Raytheon Company), F-543726 (Raytheon Company Dba Raytheon Co).
Key specifications for F-543726: General Characteristics Item Description: USED WITH X-RAY SYSTEM,FIELD; FSCM 57136; MODEL NO. 350AF; Part Name Assigned by Controlling Agency: TIMER ASSEMBLY PCB. 1 specification is 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.