The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-236-6038, 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 Joint Electronics Type Designation System. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-00-236-6038 |
| Primary Part Number | CR18U |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — No Item Name Available |
| Manufacturer | Joint Electronics Type Designation System |
| Status | ACTIVE |
| Terminal Length | 0.223 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN |
| Frequency Tolerance for Operating Temp in Percent | -0.005 TO 0.005 |
| Specified Frequency | 8.750 MEGAHERTZ |
| Operating Temp Range | -55.0 TO 90.0 CELSIUS DEGC |
| Center to Center Distance Between Terminals | 0.478 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Style Designator | OVAL BODY, PIN TERMINALS |
| Overall Thickness | 0.338 INCHES MINIMUM AND 0.343 INCHES MAXIMUM IN |
| Terminal Diameter | 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN |
| Body Length | 0.755 INCHES MINIMUM AND 0.775 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| CR18U | Joint Electronics Type Designation System (USA) |
| 291-8088-00 | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| MILC3098 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| A699 | Avionics Corp of America (USA) |
| MS91377TYPECR18U8750KC | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| MS91377TYPECR18U | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5955-00-236-6038 is a Crystal Unit,quartz, manufactured by Joint Electronics Type Designation System, classified under FSC 5955 (No Item Name Available). Status: active.
NSN 5955-00-236-6038 has 6 cross-referenced part numbers: CR18U (Joint Electronics Type Designation System), 291-8088-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), MILC3098 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), A699 (Avionics Corp of America), MS91377TYPECR18U8750KC (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.
There are 7 known substitutes for 5955-00-236-6038: 6810-00-106-1005, 5999-00-138-0999, 5955-00-238-2000 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for CR18U: Terminal Length: 0.223 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN; Frequency Tolerance for Operating Temp in Percent: -0.005 TO 0.005; Specified Frequency: 8.750 MEGAHERTZ; Operating Temp Range: -55.0 TO 90.0 CELSIUS DEGC. 12 total characteristics are documented in the Federal Logistics Information System.