The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-339-2138, 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 Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-339-2138 |
| Primary Part Number | 142718-0001 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Equivalent Resistance Value in Ohms | 250.0 MAXIMUM |
| Style Designator | RECTANGULAR BODY, SURFACE MOUNT |
| Drive Level Rating | 500.0 MICROWATTS MAXIMUM |
| Load Capacitance in Picofarads | 20.0 MAXIMUM |
| Circuit Resonance | ANTIRESONANCE |
| Shunt Capacitance in Picofarads | 3.0 MAXIMUM |
| Operating Temp Range | -55.0 TO 125.0 CELSIUS DEGC |
| Material | CERAMIC COVER HOLDER |
| Specified Frequency | 12.000 MEGAHERTZ |
| 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 |
|---|---|
| CX-I-SM1,12.0000MHZ | Statek Corp (USA) |
| 142718-0001 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
NSN 5955-01-339-2138 is a Crystal Unit,quartz, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-339-2138 has 2 manufacturer part numbers on file: CX-I-SM1,12.0000MHZ (Statek Corp), 142718-0001 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
Key specifications for 142718-0001: Overall Height: 0.070 INCHES NOMINAL IN; Equivalent Resistance Value in Ohms: 250.0 MAXIMUM; Style Designator: RECTANGULAR BODY, SURFACE MOUNT; Overall Length: 0.330 INCHES NOMINAL IN. 9 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 5955-01-339-2138 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.