PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MSC-1193-21Crystal Unit,quartz

Monitor Products Co. Inc. Dba Monitor Products Co. Inc. · NSN 5955-01-107-5261 · FSC 5955 · No Item Name Available
Verified by PartsTable
NSN 5955-01-107-5261 — this item is cataloged by the U.S. Government under National Stock Number 5955-01-107-5261. Primary manufacturer part number: MSC-1193-21.
Features
  • Crystal Unit,quartz — FSC 5955
  • Operating Temp Range: -10.0 TO 65.0 CELSIUS DEGC
  • Frequency Tolerance for Operating Temp in Percent: -0.002 TO 0.002
  • Center to Center Distance Between Terminals: 0.200 INCHES NOMINAL IN
  • Equivalent Resistance Value in Ohms: 50.0 MAXIMUM
  • Overall Diameter: 0.410 INCHES MAXIMUM IN
  • Circuit Resonance: SERIES RESONANCE
  • Specified Frequency: 97.1409 MEGAHERTZ
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-107-5261, 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 Monitor Products Co. Inc. Dba Monitor Products Co. Inc.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5955-01-107-5261
Primary Part NumberMSC-1193-21
Item NameCrystal Unit,quartz
FSC / FSG5955 / 59 — No Item Name Available
ManufacturerMonitor Products Co. Inc. Dba Monitor Products Co. Inc.
StatusACTIVE
Operating Temp Range-10.0 TO 65.0 CELSIUS DEGC
Frequency Tolerance for Operating Temp in Percent-0.002 TO 0.002
Center to Center Distance Between Terminals0.200 INCHES NOMINAL IN
Equivalent Resistance Value in Ohms50.0 MAXIMUM
Overall Diameter0.410 INCHES MAXIMUM IN
Circuit ResonanceSERIES RESONANCE
Specified Frequency97.1409 MEGAHERTZ
Mode of OscillationFIFTH OVERTONE
Terminal Diameter0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
Style DesignatorHAT TYPE, 3 WIRE LEADS
Drive Level Rating2.0 MILLIWATTS MAXIMUM
Diameter0.335 INCHES MAXIMUM IN
Terminal Length0.500 INCHES MINIMUM IN
Shunt Capacitance in Picofarads5.0 MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5999-01-007-6669 INTERCHANGEABLE
Contact,electrical
5305-01-094-598208925425 INTERCHANGEABLE
Screw
Rolls-Royce Solutions America Inc
Cross-Reference Index
Part NumberManufacturer
MSC-1193-21 PRIMARY Monitor Products Co. Inc. Dba Monitor Products Co. Inc. (USA)
801099-21 Raytheon Company Dba Raytheon (USA)
66-24-21 PRIMARY Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA)
K392-21 PRIMARY Bliley Technologies Inc (USA)
Related Parts
5999-01-007-6669INTERCHANGEABLE
CONTACT,ELECTRICAL
5305-01-094-5982INTERCHANGEABLE
SCREW
08925425

Frequently Asked Questions

What is NSN 5955-01-107-5261?

NSN 5955-01-107-5261 is a Crystal Unit,quartz, manufactured by Monitor Products Co. Inc. Dba Monitor Products Co. Inc., classified under FSC 5955 (No Item Name Available). Status: active.

What are the part numbers for NSN 5955-01-107-5261?

NSN 5955-01-107-5261 has 4 cross-referenced part numbers: MSC-1193-21 (Monitor Products Co. Inc. Dba Monitor Products Co. Inc.), 801099-21 (Raytheon Company Dba Raytheon), 66-24-21 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), K392-21 (Bliley Technologies Inc).

What NSN replaces 5955-01-107-5261?

There are 2 known substitutes for 5955-01-107-5261: 5999-01-007-6669, 5305-01-094-5982. Verify interchangeability with system specifications before substitution.

What are the specifications of MSC-1193-21?

Key specifications for MSC-1193-21: Operating Temp Range: -10.0 TO 65.0 CELSIUS DEGC; Frequency Tolerance for Operating Temp in Percent: -0.002 TO 0.002; Center to Center Distance Between Terminals: 0.200 INCHES NOMINAL IN; Special Features: QUARTZ CRYSTAL SHALL POSSESS A 45 DEGREE POLARIZATION KEY. 16 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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