The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-997-0797, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled. Government technical data includes 13 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 | 5955-00-997-0797 |
| Primary Part Number | 13-49-40R3125B |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.0005 TO 0.0005 |
| Terminal Diameter | 0.040 INCHES NOMINAL IN |
| Terminal Length | 0.238 INCHES NOMINAL IN |
| Equivalent Resistance Value in Ohms | 50.0 NOMINAL |
| Overall Thickness | 0.147 INCHES NOMINAL IN |
| Style Designator | OVAL BODY, PIN TERMINALS |
| Drive Level Rating | 2.5 MILLIWATTS NOMINAL AND 2.0 MILLIWATTS MINIMUM AND 3.0 MILLIWATTS MAXIMUM |
| Body Length | 0.515 INCHES NOMINAL IN |
| Center to Center Distance Between Terminals | 0.192 INCHES NOMINAL IN |
| Circuit Resonance | SERIES RESONANCE |
| Shunt Capacitance in Picofarads | 7.0 NOMINAL |
| Operating Temp Range | +10.0 TO 33.0 CELSIUS DEGC |
| Specified Frequency | 40.3125 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 |
|---|---|
| 13-49-40R3125B | Raytheon Company (USA) |
| 13-49-40R3125B PRIMARY | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
NSN 5955-00-997-0797 is a Crystal Unit,quartz, manufactured by Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-00-997-0797 has 2 manufacturer part numbers on file: 13-49-40R3125B (Raytheon Company), 13-49-40R3125B (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled).
Key specifications for 13-49-40R3125B: Frequency Tolerance for Operating Temp in Percent: -0.0005 TO 0.0005; Terminal Diameter: 0.040 INCHES NOMINAL IN; Terminal Length: 0.238 INCHES NOMINAL IN; Equivalent Resistance Value in Ohms: 50.0 NOMINAL. 13 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 5955-00-997-0797 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.