The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-373-6400, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Data Check Dba Lavi Systems, Inc. Div Data Check. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-373-6400 |
| Primary Part Number | 3-74323 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Data Check Dba Lavi Systems, Inc. Div Data Check |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.020 TO 0.020 |
| Mode of Oscillation | FUNDAMENTAL |
| Equivalent Resistance Value in Ohms | 5000.0 NOMINAL |
| Drive Level Rating | 2.0 MILLIWATTS NOMINAL |
| Load Capacitance in Picofarads | 32.0 NOMINAL |
| Circuit Resonance | ANTIRESONANCE |
| Operating Temp Range | -30.0 TO 55.0 CELSIUS DEGC |
| Specified Frequency | 432.000 KILOHERTZ |
| 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 |
|---|---|
| 817-C-432.00KHZ | Standard Crystal Corp (USA) |
| 3-74323 PRIMARY | Data Check Dba Lavi Systems, Inc. Div Data Check (USA) |
| Reference | Meaning |
|---|---|
| 432KH3/HC-33/U | C/1 Advisory reference — outside the item-of-supply concept Standard Crystal Corp |
NSN 5955-01-373-6400 is a Crystal Unit,quartz, manufactured by Data Check Dba Lavi Systems, Inc. Div Data Check, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-373-6400 has 2 manufacturer part numbers on file: 817-C-432.00KHZ (Standard Crystal Corp), 3-74323 (Data Check Dba Lavi Systems, Inc. Div Data Check).
Key specifications for 3-74323: Frequency Tolerance for Operating Temp in Percent: -0.020 TO 0.020; Mode of Oscillation: FUNDAMENTAL; Equivalent Resistance Value in Ohms: 5000.0 NOMINAL; Drive Level Rating: 2.0 MILLIWATTS NOMINAL. 8 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 5955-01-373-6400 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.