The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-288-5342, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Northrop Grumman Support Services Corp. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-288-5342 |
| Primary Part Number | 645A007G01 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| Mode of Oscillation | FUNDAMENTAL |
| Circuit Resonance | SERIES RESONANCE |
| Specified Frequency | 59.750 MEGAHERTZ AND 63.700 MEGAHERTZ |
| 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 |
|---|---|
| 645A007G01 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| Reference | Meaning |
|---|---|
| 645A007G01 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5955-01-288-5342 is a Crystal Unit,quartz, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-288-5342 has 1 manufacturer part number on file: 645A007G01 (Northrop Grumman Support Services Corp).
Key specifications for 645A007G01: Mode of Oscillation: FUNDAMENTAL; Circuit Resonance: SERIES RESONANCE; Special Features: THERE ARE 16 CRYSTALS PET SET; End Item Identification: AN/TPS-43E ULSA RADAR SET. 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.