The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-685-8698, 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 Trw Electronics and Defense Sector Rf Devices. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-00-685-8698 |
| Primary Part Number | 290-7540-00 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — No Item Name Available |
| Manufacturer | Trw Electronics and Defense Sector Rf Devices |
| Status | ACTIVE |
| Mode of Oscillation | FUNDAMENTAL |
| Body Thickness | 0.317 INCHES MAXIMUM IN |
| Operating Temp Range | -55.0 TO 90.0 CELSIUS DEGC |
| Frequency Tolerance for Operating Temp in Percent | -0.0025 TO 0.0025 |
| Center to Center Distance Between Terminals | 0.478 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN |
| Style Designator | OVAL BODY, PIN TERMINALS |
| Terminal Length | 0.223 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN |
| Terminal Diameter | 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN |
| Overall Thickness | 0.352 INCHES MAXIMUM IN |
| Circuit Resonance | ANTIRESONANCE |
| Equivalent Resistance Value in Ohms | 550.0 NOMINAL |
| Drive Level Rating | 5.0 MILLIWATTS MAXIMUM |
| Specified Frequency | 1.942 MEGAHERTZ |
| Load Capacitance in Picofarads | 32.0 NOMINAL |
| Body Width | 0.725 INCHES MAXIMUM IN |
| Body Length | 0.775 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 290-7540-00 | Trw Electronics and Defense Sector Rf Devices (USA) |
| 290-7540-00 | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| 290-7540-00 | Cts Valpey Corporation (USA) |
| 290-7540-00 | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| 290-7540-00 | Bliley Technologies Inc (USA) |
| 290-7540-00 | Cts Inc (USA) |
| BH6A | Bliley Technologies Inc (USA) |
NSN 5955-00-685-8698 is a Crystal Unit,quartz, manufactured by Trw Electronics and Defense Sector Rf Devices, classified under FSC 5955 (No Item Name Available). Status: active.
NSN 5955-00-685-8698 has 7 cross-referenced part numbers: 290-7540-00 (Trw Electronics and Defense Sector Rf Devices), 290-7540-00 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), 290-7540-00 (Cts Valpey Corporation), 290-7540-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 290-7540-00 (Bliley Technologies Inc) and 2 more.
There are 3 known substitutes for 5955-00-685-8698: 5955-00-084-8503, 5955-00-686-7228, 5955-00-686-7230. Verify interchangeability with system specifications before substitution.
Key specifications for 290-7540-00: Mode of Oscillation: FUNDAMENTAL; Overall Width: 0.757 INCHES MAXIMUM IN; Body Thickness: 0.317 INCHES MAXIMUM IN; Operating Temp Range: -55.0 TO 90.0 CELSIUS DEGC. 18 total characteristics are documented in the Federal Logistics Information System.