The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-255-2136, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-00-255-2136 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.007 TO 0.007 |
| Terminal Diameter | 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN |
| Terminal Length | 0.192 INCHES MINIMUM AND 0.217 INCHES MAXIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Body Width | 0.720 INCHES NOMINAL IN |
| Equivalent Resistance Value in Ohms | 75.0 NOMINAL |
| Overall Thickness | 0.345 INCHES MAXIMUM IN |
| Style Designator | OVAL BODY, PIN TERMINALS |
| Body Length | 0.565 INCHES MINIMUM AND 0.583 INCHES MAXIMUM IN |
| Center to Center Distance Between Terminals | 0.476 INCHES MINIMUM AND 0.496 INCHES MAXIMUM IN |
| Load Capacitance in Picofarads | 27.5 MINIMUM AND 28.5 MAXIMUM |
| Circuit Resonance | ANTIRESONANCE |
| Operating Temp Range | +50.0 TO 85.0 CELSIUS DEGC |
| Test Data Document | 81349-MILC16836 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Specified Frequency | 6.01875 MEGAHERTZ |
| Body Thickness | 0.315 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 40161 | 5/1 Secondary reference U.S. Government activity |
| MIL-C-16836 | 4/1 Identification reference U.S. Government activity |
| 40161-6018-75KC | 2/2 Government specification standardization U.S. Government activity |
NSN 5955-00-255-2136 is a Crystal Unit,quartz, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 5330-00-842-8225, 4730-01-045-5030, 1615-01-079-3919. Verify interchangeability with system specifications before substitution.
Key specifications for 5955-00-255-2136: Frequency Tolerance for Operating Temp in Percent: -0.007 TO 0.007; Terminal Diameter: 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN; Terminal Length: 0.192 INCHES MINIMUM AND 0.217 INCHES MAXIMUM IN; Mode of Oscillation: FUNDAMENTAL. 16 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 5955-00-255-2136 has DEMIL Code D. 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.