The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-198-7875, is classified within Federal Supply Class 5955 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Cts Reeves Frequency Products. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-198-7875 |
| Primary Part Number | C18944 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — No Item Name Available |
| Manufacturer | Cts Reeves Frequency Products |
| Status | ACTIVE |
| Load Capacitance in Picofarads | 31.5 MINIMUM AND 32.5 MAXIMUM |
| Specified Frequency | 1.2288 MEGAHERTZ |
| Distance Between Center Terminal and Outside Terminal Centers | 0.141 INCHES NOMINAL IN |
| Operating Temp Range | -32.0 TO 85.0 CELSIUS DEGC |
| Drive Level Rating | 1.0 MILLIWATTS MAXIMUM |
| Specification/standard Data | 98230-0N520346 MANUFACTURERS SPECIFICATION CONTROL |
| Mode of Oscillation | FUNDAMENTAL |
| Overall Diameter | 0.850 INCHES MAXIMUM IN |
| Style Designator | HAT TYPE, 5 WIRE LEADS |
| Frequency Tolerance for Operating Temp in Percent | -0.005 TO 0.005 |
| Center to Center Distance Between Terminals | 0.282 INCHES NOMINAL IN |
| Second Center to Center Distance Between Terminals | 0.282 INCHES NOMINAL IN |
| Equivalent Resistance Value in Ohms | 400.0 MAXIMUM |
| Terminal Diameter | 0.018 INCHES NOMINAL IN |
| Diameter | 0.680 INCHES NOMINAL IN |
| Circuit Resonance | ANTIRESONANCE |
| Shunt Capacitance in Picofarads | 7.0 MAXIMUM |
| Terminal Length | 0.500 INCHES MINIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5955-01-198-7875 is a Crystal Unit,quartz, manufactured by Cts Reeves Frequency Products, classified under FSC 5955 (No Item Name Available). Status: active.
NSN 5955-01-198-7875 has 3 cross-referenced part numbers: 0N520346 (National Security Agency), C18944 (Cts Reeves Frequency Products), 28-12-1 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled).
There are 9 known substitutes for 5955-01-198-7875: 5330-00-225-9122, 5330-00-420-5796, 3455-00-476-0840 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for C18944: Load Capacitance in Picofarads: 31.5 MINIMUM AND 32.5 MAXIMUM; Specified Frequency: 1.2288 MEGAHERTZ; Distance Between Center Terminal and Outside Terminal Centers: 0.141 INCHES NOMINAL IN; Operating Temp Range: -32.0 TO 85.0 CELSIUS DEGC. 19 total characteristics are documented in the Federal Logistics Information System.