The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-275-6899, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-275-6899 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Status | ACTIVE |
| Terminal Diameter | 0.141 INCHES MAXIMUM IN |
| Terminal Length | 0.238 INCHES NOMINAL IN |
| Mode of Oscillation | THIRD OVERTONE |
| Body Width | 0.725 INCHES MAXIMUM IN |
| Equivalent Resistance Value in Ohms | 40.0 MAXIMUM |
| Overall Thickness | 0.352 INCHES MAXIMUM IN |
| Style Designator | OVAL BODY, PIN TERMINALS |
| Drive Level Rating | 1.0 MILLIWATTS NOMINAL |
| Body Length | 0.775 INCHES MAXIMUM IN |
| Center to Center Distance Between Terminals | 0.486 INCHES NOMINAL IN |
| Shunt Capacitance in Picofarads | 7.0 MAXIMUM |
| Operating Temp Range | +70.0 TO 80.0 CELSIUS DEGC |
| Specified Frequency | 38.925926 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 |
| Reference | Meaning |
|---|---|
| CR65/U | 5/9 Secondary reference Inficon Edc Inc. |
| MIL-PRF-3098/43 | 4/1 Identification reference U.S. Government activity |
| CR65/U | 5/9 Secondary reference United States Crystal Corp |
| CR65/U | 5/9 Secondary reference Electronic Research Company |
| ER65/U | 5/9 Secondary reference Electronic Research Company |
| CR65/U | 5/1 Secondary reference Wenzel International Inc Div Croven Crystals |
| CR65/U | 5/1 Secondary reference Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled |
| MIL-C-3098/43 | 5/9 Secondary reference U.S. Government activity |
| CR65/U | 5/1 Secondary reference M-Tron Industries, Inc |
| CR-65/U38.925926MHZ | 2/2 Government specification standardization U.S. Government activity |
NSN 5955-01-275-6899 is a Crystal Unit,quartz, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
Key specifications for 5955-01-275-6899: Terminal Diameter: 0.141 INCHES MAXIMUM IN; Terminal Length: 0.238 INCHES NOMINAL IN; Mode of Oscillation: THIRD OVERTONE; Body Width: 0.725 INCHES MAXIMUM IN. 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.