The Crystal Unit Set,quartz, cataloged under National Stock Number 5955-01-243-7557, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5955-01-243-7557 |
| Primary Part Number | 409524-86 |
| Item Name | Crystal Unit Set,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled |
| Status | ACTIVE |
| Component Quantity | 3 |
| Unit Package Quantity | 1 |
| Usage Location | COMMUNICATIONS ZONE |
| 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 |
|---|---|
| 409524-86 PRIMARY | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| 409524-86 | Aimtron Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 409524-86 | 5/9 Secondary reference Inficon Edc Inc. |
| 409524-86 | 5/9 Secondary reference Cardion Inc |
NSN 5955-01-243-7557 is a Crystal Unit Set,quartz, manufactured by Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-243-7557 has 2 manufacturer part numbers on file: 409524-86 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), 409524-86 (Aimtron Systems, Llc).
Key specifications for 409524-86: Component Quantity: 3; Unit Package Quantity: 1; Special Features: FREQUENCY OF THREE CRYSTAL SET IS 18.708333 MHZ MHz; End Item Identification: AN/FRN-43. 3 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.