The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-050-7167, 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 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5955-01-050-7167 |
| Primary Part Number | 128C850H06 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| Distance Between Center Terminal and Outside Terminal Centers | 0.100 INCHES NOMINAL IN |
| Frequency Tolerance for Operating Temp in Percent | -0.025 TO 0.025 |
| Terminal Diameter | 0.030 INCHES NOMINAL IN |
| Second Center to Center Distance Between Terminals | 0.200 INCHES NOMINAL IN |
| Overall Diameter | 0.575 INCHES NOMINAL IN |
| Terminal Length | 0.250 INCHES NOMINAL IN |
| Mode of Oscillation | FIFTH OVERTONE |
| Equivalent Resistance Value in Ohms | 80.0 MAXIMUM |
| Frequency Stability in Percent | -0.0025 TO 0.0025 |
| Style Designator | HAT TYPE, 5 WIRE LEADS |
| Diameter | 0.500 INCHES NOMINAL IN |
| Drive Level Rating | 0.5 MILLIWATTS NOMINAL |
| Center to Center Distance Between Terminals | 0.200 INCHES NOMINAL IN |
| Load Capacitance in Picofarads | 20.0 MINIMUM AND 30.0 MAXIMUM |
| Circuit Resonance | SERIES RESONANCE |
| Shunt Capacitance in Picofarads | 3.0 NOMINAL |
| Operating Temp Range | -10.0 TO 60.0 CELSIUS DEGC |
| Specified Frequency | 31.070292 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 |
|---|---|
| 128C850H06 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| 31-070292MHZ | Northrop Grumman Support Services Corp (USA) |
| Reference | Meaning |
|---|---|
| 31-070292MHZ | 5/9 Secondary reference U.S. Government activity |
| 128C850H06 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5955-01-050-7167 is a Crystal Unit,quartz, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-050-7167 has 2 manufacturer part numbers on file: 128C850H06 (Northrop Grumman Support Services Corp), 31-070292MHZ (Northrop Grumman Support Services Corp).
Key specifications for 128C850H06: Distance Between Center Terminal and Outside Terminal Centers: 0.100 INCHES NOMINAL IN; Frequency Tolerance for Operating Temp in Percent: -0.025 TO 0.025; Terminal Diameter: 0.030 INCHES NOMINAL IN; Second Center to Center Distance Between Terminals: 0.200 INCHES NOMINAL IN. 18 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 5955-01-050-7167 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.