NSN 5955-00-447-9638, 5955004479638
CRYSTAL UNIT,QUARTZ

Federal Supply Classification: FSC 5955 - Oscillators and Piezoelectric Crystals
National Item Identification Number: NIIN 004479638
Codification Country: United States
Item Name Code: INC 00196
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

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DLMS^® Summary

National Stock Number 5955-00-447-9638

National Stock Number (NSN) 5955-00-447-9638, or NIIN 004479638, (crystal unit,quartz) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 4 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Nov 26, 2014. There have been 2 contracts issued for this part number, with 2 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE7M915V2350, SPM7M113M1832, SPM7M113M1832, SPM7M113M1832, SPM7M113M1832. The total value of the awarded contracts has been US$ 6,825.60.

This NSN is somewhat common among different platforms, belonging to 7 different weapons systems.

There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Nov 22, 2012, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

This NSN is assigned to Item Name Code (INC) 00196. [AN ITEM WHICH CONSISTS OF A QUARTZ CRYSTAL RESONATOR(S), SUITABLY MOUNTED IN A HOLDER, QUARTZ CRYSTAL.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5955004479638 does not contain precious metals.

This NSN is associated to Schedule B 8541900000: diode, transistor & similar semiconductor device parts. The Schedule B End Use is listed as semiconductors. NAICS classification category 334413: semiconductor and related device manufacturing.

This information was last updated on Jul 01, 2025.

Technical Characteristics

DRIVE LEVEL RATING: (CQYL) 0.8 MILLIWATTS MINIMUM AND 1.2 MILLIWATTS MAXIMUM
BODY THICKNESS: (ADPR) 0.150 INCHES MAXIMUM
BODY WIDTH: (ADAT) 0.402 INCHES MAXIMUM
CENTER TO CENTER DISTANCE BETWEEN TERMINALS: (AEHT) 0.184 INCHES MINIMUM AND 0.200 INCHES MAXIMUM
CIRCUIT RESONANCE: (AEHD) ANTIRESONANCE
EQUIVALENT RESISTANCE VALUE IN OHMS: (CRMP) 450.0 MAXIMUM
FREQUENCY TOLERANCE FOR OPERATING TEMP IN PERCENT: (CRFX) -0.005 TO 0.005 AND -0.0010 TO 0.0010
LOAD CAPACITANCE IN PICOFARADS: (AEHE) 32.0 NOMINAL AND 31.5 MINIMUM AND 32.5 MAXIMUM
OVERALL LENGTH: (ABHP) 0.530 INCHES MAXIMUM
OVERALL THICKNESS: (ADUM) 0.183 INCHES MAXIMUM
OVERALL WIDTH: (ABMK) 0.435 INCHES MAXIMUM
MATERIAL: (MATT) GLASS COVER, HOLDER
MODE OF OSCILLATION: (AEHC) FUNDAMENTAL
OPERATING TEMP RANGE: (AFGA) -55.0 TO 100.0 CELSIUS
SHUNT CAPACITANCE IN PICOFARADS: (AEHF) 7.0 MAXIMUM
SPECIFICATION/STANDARD DATA: (ZZZK) 81349-MIL-C-3098/101 GOVERNMENT SPECIFICATION
SPECIFIED FREQUENCY: (AEHG) 3.300 MEGAHERTZ
STYLE DESIGNATOR: (STYL) RECTANGULAR BODY, PIN TERMINALS
TERMINAL DIAMETER: (AEBT) 0.015 INCHES MINIMUM AND 0.019 INCHES MAXIMUM
TERMINAL LENGTH: (ABJT) 0.5003 INCHES MINIMUM
TEST DATA DOCUMENT: (TEST) 81349-MIL-C-3098/38 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.).
III MODE OF OSCILLATION: (AEHC) FUNDAMENTAL
UNABLE TO DECODE: (CQBK) UNABLE TO DECODE AND UNABLE TO DECODE
UNABLE TO DECODE: (AEHS) UNABLE TO DECODE OR UNABLE TO DECODE
CENTER TO CENTER DISTANCE BETWEEN TERMINALS: (CQBK) 0.184 NOMINAL MILS AND 0.200 NOMINAL CENTIMETERS
OPERATING TEMP RANGE: (AFGA) -55.0/+100.0 DEG CELSIUS
FREQUENCY TOLERANCE FOR OPERATING TEMP IN PERCENT: (CRFX) -0.005/+0.005 AND -0.0010 TO 0.0010
HOLDER COVER MATERIAL: (AEHS) METAL OR GLASS
OPERATING TEMP RANGE: (AFGA) -55.0 TO 100.0 DEG CELSIUS