The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-949-1909, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-00-949-1909 |
| Primary Part Number | SM-B-529004 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.002 TO 0.002 AND -0.007 TO 0.007 |
| Terminal Diameter | 0.027 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN |
| Terminal Length | 1.000 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Body Width | 0.725 INCHES MAXIMUM IN |
| Equivalent Resistance Value in Ohms | 60.0 NOMINAL |
| Overall Thickness | 0.352 INCHES MAXIMUM IN |
| Style Designator | RECTANGULAR BODY, GULL WING |
| Center to Center Distance Between Terminals | 0.478 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN |
| Circuit Resonance | SERIES RESONANCE |
| Operating Temp Range | -29.0 TO 70.0 CELSIUS DEGC |
| Material | GLASS COVER HOLDER |
| Specified Frequency | 2.304 MEGAHERTZ |
| Body Thickness | 0.317 INCHES MAXIMUM IN |
| 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 |
|---|---|
| SM-B-529004 | Raytheon Company Dba Raytheon Co (USA) |
| SM-B-529004 | Raytheon Company (USA) |
| VR6E2304KHZ | Cts Valpey Corporation (USA) |
| 78AX1254-2.304MHZ | Power Control Devices, Inc. (USA) |
| Reference | Meaning |
|---|---|
| SM-B-529004 | 5/9 Secondary reference Inficon Edc Inc. |
| SM-B-529004 | 3/2 Design control — primary reference U.S. Government activity |
| SM-B-529004 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 5955-00-949-1909 is a Crystal Unit,quartz, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-00-949-1909 has 4 manufacturer part numbers on file: SM-B-529004 (Raytheon Company Dba Raytheon Co), SM-B-529004 (Raytheon Company), VR6E2304KHZ (Cts Valpey Corporation), 78AX1254-2.304MHZ (Power Control Devices, Inc.).
Key specifications for SM-B-529004: Frequency Tolerance for Operating Temp in Percent: -0.002 TO 0.002 AND -0.007 TO 0.007; Terminal Diameter: 0.027 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN; Terminal Length: 1.000 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN; Mode of Oscillation: FUNDAMENTAL. 14 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.