NSN 5955-00-985-1998, 5955009851998
CRYSTAL UNIT,QUARTZ

Federal Supply Classification: FSC 5955 - Oscillators and Piezoelectric Crystals
National Item Identification Number: NIIN 009851998
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 5955-00-985-1998

National Stock Number (NSN) 5955-00-985-1998, or NIIN 009851998, (crystal unit,quartz) was assigned January 1, 1962 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN.

This part number has not been procured by the US Government in over 5 years.

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 5955009851998 contains an unknown precious metal.

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, 2026.

Technical Characteristics

BODY LENGTH: (ADAQ) INCHES MAXIMUM 0.775
BODY THICKNESS: (ADPR) INCHES MAXIMUM 0.317
BODY WIDTH: (ADAT) INCHES MAXIMUM 0.725
CENTER TO CENTER DISTANCE BETWEEN TERMINALS: (AEHT) INCHES MINIMUM 0.478 AND INCHES MAXIMUM 0.494
CIRCUIT RESONANCE: (AEHD) ANTIRESONANCE
CONTROLLED REFERENCE TEMP: (AEHM) CELSIUS 75.0
DRIVE LEVEL RATING: (CQYL) MILLIWATTS MINIMUM 4.0 AND MILLIWATTS MAXIMUM 6.0
EQUIVALENT RESISTANCE VALUE IN OHMS: (CRMP) NOMINAL 75.0
FREQUENCY STABILITY IN PERCENT: (AEHL) -0.0005 TO 0.0005
FREQUENCY TOLERANCE AT REFERENCE TEMP IN PERCENT: (AEHK) -0.007 TO 0.007
FREQUENCY TOLERANCE FOR OPERATING TEMP IN PERCENT: (CRFX) -0.002 TO 0.002
LOAD CAPACITANCE IN PICOFARADS: (AEHE) MINIMUM 31.5 AND MAXIMUM 32.5
MODE OF OSCILLATION: (AEHC) FUNDAMENTAL
OPERABLE TEMP RANGE: (AEHN) CELSIUS -55.0 TO 90.0
OPERATING TEMP RANGE: (AFGA) CELSIUS 70.0 TO 80.0
OVERALL LENGTH: (ABHP) INCHES MAXIMUM 1.023
OVERALL THICKNESS: (ADUM) INCHES MAXIMUM 0.352
OVERALL WIDTH: (ABMK) INCHES MAXIMUM 0.757
SHUNT CAPACITANCE IN PICOFARADS: (AEHF) MAXIMUM 7.0
TERMINAL LENGTH: (ABJT) INCHES MINIMUM 0.223 AND INCHES MAXIMUM 0.248
TERMINAL DIAMETER: (AEBT) INCHES MINIMUM 0.048 AND INCHES MAXIMUM 0.052
TEST DATA DOCUMENT: (TEST) 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.). 81349--ILC3098
SPECIFIED FREQUENCY: (AEHG) MEGAHERTZ 3.800
OPERABLE TEMP RANGE: (AEHN) -55.0/+90.0 DEG CELSIUS
FREQUENCY TOLERANCE AT REFERENCE TEMP IN PERCENT: (AEHK) -0.007/+0.007
OPERATING TEMP RANGE: (AFGA) +70.0/+80.0 DEG CELSIUS
CONTROLLED REFERENCE TEMP: (AEHM) 75.0 DEG CELSIUS
CENTER TO CENTER DISTANCE BETWEEN TERMINALS: (CQBK) 0.478 NOMINAL MILS AND 0.494 NOMINAL CENTIMETERS
FREQUENCY TOLERANCE FOR OPERATING TEMP IN PERCENT: (CRFX) -0.002/+0.002
III MODE OF OSCILLATION: (AEHC) FUNDAMENTAL
OPERABLE TEMP RANGE: (AEHN) -55.0 TO 90.0 DEG CELSIUS
UNABLE TO DECODE: (CQBK) UNABLE TO DECODE AND UNABLE TO DECODE
OPERATING TEMP RANGE: (AFGA) +70.0 TO 80.0 DEG CELSIUS
FREQUENCY STABILITY IN PERCENT: (AEHL) -0.0005/+0.0005
HOLDER COVER MATERIAL: (AEHS) METAL
UNABLE TO DECODE: (AEHS) UNABLE TO DECODE