PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FC-SD2Crystal Unit,quartz

Piezo Technology Incorporated Dba Piezo Technology Inc · NSN 5955-00-035-4634 · FSC 5955 · No Item Name Available
Verified by PartsTable
NSN 5955-00-035-4634 — this item is cataloged by the U.S. Government under National Stock Number 5955-00-035-4634. Primary manufacturer part number: FC-SD2.
Features
  • Crystal Unit,quartz — FSC 5955
  • Circuit Resonance: ANTIRESONANCE
  • Drive Level Rating: 100.0 MICROAMPERES NOMINAL
  • Style Designator: RECTANGULAR BODY, PIN TERMINALS
  • Equivalent Resistance Value in Ohms: 500.0 NOMINAL
  • Operating Temp Range: +0.0 TO 50.0 CELSIUS DEGC
  • Frequency Tolerance for Operating Temp in Percent: -0.002 TO 0.002 AND -0.003 TO 0.003
  • Center to Center Distance Between Terminals: 0.478 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-035-4634, 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 Piezo Technology Incorporated Dba Piezo Technology Inc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5955-00-035-4634
Primary Part NumberFC-SD2
Item NameCrystal Unit,quartz
FSC / FSG5955 / 59 — No Item Name Available
ManufacturerPiezo Technology Incorporated Dba Piezo Technology Inc
StatusACTIVE
Circuit ResonanceANTIRESONANCE
Drive Level Rating100.0 MICROAMPERES NOMINAL
Style DesignatorRECTANGULAR BODY, PIN TERMINALS
Equivalent Resistance Value in Ohms500.0 NOMINAL
Operating Temp Range+0.0 TO 50.0 CELSIUS DEGC
Frequency Tolerance for Operating Temp in Percent-0.002 TO 0.002 AND -0.003 TO 0.003
Center to Center Distance Between Terminals0.478 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN
Mode of OscillationFUNDAMENTAL
Overall Thickness0.352 INCHES MAXIMUM IN
Load Capacitance in Picofarads31.5 MINIMUM AND 32.5 MAXIMUM
Body Width0.725 INCHES MAXIMUM IN
Terminal Length0.223 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN
Terminal Diameter0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
Specified Frequency1.0003 MEGAHERTZ
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4930-00-244-4859 INTERCHANGEABLE
Pump,bucket,lubricating
5315-01-031-612711617980 INTERCHANGEABLE
Pin,retaining
U S Army Tank Automotive Command Amsta-Im-Mm
6135-01-535-9092102450 INTERCHANGEABLE
Battery Assembly
Hii Unmanned Systems, Inc
Cross-Reference Index
Part NumberManufacturer
FC-SD2 PRIMARY Piezo Technology Incorporated Dba Piezo Technology Inc (USA)
102450 Emcore Corporation Div Concord Division (USA)
Y0019 Emcore Corporation Div Concord Division (USA)
Related Parts
4930-00-244-4859INTERCHANGEABLE
PUMP,BUCKET,LUBRICATING
5315-01-031-6127INTERCHANGEABLE
PIN,RETAINING
11617980
6135-01-535-9092INTERCHANGEABLE
BATTERY ASSEMBLY
102450

Frequently Asked Questions

What is NSN 5955-00-035-4634?

NSN 5955-00-035-4634 is a Crystal Unit,quartz, manufactured by Piezo Technology Incorporated Dba Piezo Technology Inc, classified under FSC 5955 (No Item Name Available). Status: active.

What are the part numbers for NSN 5955-00-035-4634?

NSN 5955-00-035-4634 has 3 cross-referenced part numbers: FC-SD2 (Piezo Technology Incorporated Dba Piezo Technology Inc), 102450 (Emcore Corporation Div Concord Division), Y0019 (Emcore Corporation Div Concord Division).

What NSN replaces 5955-00-035-4634?

There are 3 known substitutes for 5955-00-035-4634: 4930-00-244-4859, 5315-01-031-6127, 6135-01-535-9092. Verify interchangeability with system specifications before substitution.

What are the specifications of FC-SD2?

Key specifications for FC-SD2: Circuit Resonance: ANTIRESONANCE; Drive Level Rating: 100.0 MICROAMPERES NOMINAL; Style Designator: RECTANGULAR BODY, PIN TERMINALS; Equivalent Resistance Value in Ohms: 500.0 NOMINAL. 15 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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