The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-481-0601, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is U S Dept of Transportation Federal Aviation Administration. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-481-0601 |
| Primary Part Number | 645A744L44 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | U S Dept of Transportation Federal Aviation Administration |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 645A744L44 PRIMARY | U S Dept of Transportation Federal Aviation Administration (USA) |
| 645A744L44 | Wenzel International Inc Div Croven Crystals (CAN) |
| Reference | Meaning |
|---|---|
| 745A744L44 | 5/2 Secondary reference U.S. Government activity |
NSN 5955-01-481-0601 is a Crystal Unit,quartz, manufactured by U S Dept of Transportation Federal Aviation Administration, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-481-0601 has 2 manufacturer part numbers on file: 645A744L44 (U S Dept of Transportation Federal Aviation Administration), 645A744L44 (Wenzel International Inc Div Croven Crystals).
Key specifications for 645A744L44: End Item Identification: AIRPORT SURVEILLANCE RADAR 9(ASR9). 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.
NSN 5955-01-481-0601 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.