The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-060-7542, 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 Whittaker Corp Whittaker Electronic Systems Div. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-00-060-7542 |
| Primary Part Number | 21126-22 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — No Item Name Available |
| Manufacturer | Whittaker Corp Whittaker Electronic Systems Div |
| Status | ACTIVE |
| Body Width | 0.725 INCHES MAXIMUM IN |
| Shunt Capacitance in Picofarads | 7.0 MAXIMUM |
| Mode of Oscillation | THIRD OVERTONE |
| Drive Level Rating | 0.8 MILLIWATTS MINIMUM AND 1.2 MILLIWATTS MAXIMUM |
| Style Designator | OVAL BODY, PIN TERMINALS |
| Specification/standard Data | 81349-MIL-C-3098/43 GOVERNMENT SPECIFICATION |
| Frequency Tolerance for Operating Temp in Percent | -0.001 TO 0.001 |
| Center to Center Distance Between Terminals | 0.478 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN |
| Test Data Document | 81349-MIL-C-3098 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.). |
| Terminal Length | 0.223 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN |
| Overall Thickness | 0.352 INCHES MAXIMUM IN |
| Operating Temp Range | +70.0 TO 80.0 CELSIUS DEGC |
| Operable Temp Range | -55.0 TO 90.0 CELSIUS DEGC |
| Frequency Stability in Percent | -0.00025 TO 0.00025 |
| Circuit Resonance | SERIES RESONANCE |
| Body Length | 0.775 INCHES MAXIMUM IN |
| Specified Frequency | 43.77778 MEGAHERTZ |
| Equivalent Resistance Value in Ohms | 40.0 MAXIMUM |
| Frequency Tolerance at Reference Temp in Percent | -0.007 TO 0.007 |
| Controlled Reference Temp | 75.0 CELSIUS DEGC |
| Body Thickness | 0.317 INCHES MAXIMUM IN |
| Terminal Diameter | 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 21126-22 | Whittaker Corp Whittaker Electronic Systems Div (USA) |
| MIL-PRF-3098/43 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| CR65/U43M77778 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| CR65U43-777780MHZ | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-C-3098/43 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5955-00-060-7542 is a Crystal Unit,quartz, manufactured by Whittaker Corp Whittaker Electronic Systems Div, classified under FSC 5955 (No Item Name Available). Status: active.
NSN 5955-00-060-7542 has 5 cross-referenced part numbers: 21126-22 (Whittaker Corp Whittaker Electronic Systems Div), MIL-PRF-3098/43 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), CR65/U43M77778 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), CR65U43-777780MHZ (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-C-3098/43 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).
There is 1 known substitute for 5955-00-060-7542: 4810-01-418-4291. Verify interchangeability with system specifications before substitution.
Key specifications for 21126-22: Body Width: 0.725 INCHES MAXIMUM IN; Shunt Capacitance in Picofarads: 7.0 MAXIMUM; Mode of Oscillation: THIRD OVERTONE; Drive Level Rating: 0.8 MILLIWATTS MINIMUM AND 1.2 MILLIWATTS MAXIMUM. 24 total characteristics are documented in the Federal Logistics Information System.