PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

90228-1Crystal Unit,quartz

Hamilton Sundstrand Corporation Dba Collins Aerospace · NSN 5955-01-202-6250 · FSC 5955 · No Item Name Available
Verified by PartsTable
NSN 5955-01-202-6250 — this item is cataloged by the U.S. Government under National Stock Number 5955-01-202-6250. Primary manufacturer part number: 90228-1.
Features
  • Crystal Unit,quartz — FSC 5955
  • Terminal Length: 0.600 INCHES MINIMUM IN
  • Load Capacitance in Picofarads: 40.0 NOMINAL
  • Style Designator: HAT TYPE, 3 WIRE LEADS
  • Equivalent Resistance Value in Ohms: 25.0 MAXIMUM
  • Frequency Tolerance for Operating Temp in Percent: -0.005 TO 0.005
  • Drive Level Rating: 500.0 MICROWATTS NOMINAL
  • Center to Center Distance Between Terminals: 0.195 INCHES MINIMUM AND 0.205 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 5955-01-202-6250, 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 Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5955-01-202-6250
Primary Part Number90228-1
Item NameCrystal Unit,quartz
FSC / FSG5955 / 59 — No Item Name Available
ManufacturerHamilton Sundstrand Corporation Dba Collins Aerospace
StatusACTIVE
Terminal Length0.600 INCHES MINIMUM IN
Load Capacitance in Picofarads40.0 NOMINAL
Style DesignatorHAT TYPE, 3 WIRE LEADS
Equivalent Resistance Value in Ohms25.0 MAXIMUM
Frequency Tolerance for Operating Temp in Percent-0.005 TO 0.005
Drive Level Rating500.0 MICROWATTS NOMINAL
Center to Center Distance Between Terminals0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
Shunt Capacitance in Picofarads7.0 MAXIMUM
Diameter0.326 INCHES MAXIMUM IN
Mode of OscillationFUNDAMENTAL
Circuit ResonanceANTIRESONANCE
Operating Temp Range-55.0 TO 105.0 CELSIUS DEGC
Terminal Diameter0.0175 INCHES MINIMUM AND 0.0205 INCHES MAXIMUM IN
Specified Frequency12.000 MEGAHERTZ
Overall Diameter0.420 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5310-00-102-4085 INTERCHANGEABLE
Washer,flat
5331-00-292-0577MS28775-007 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5310-00-756-6054 INTERCHANGEABLE
Washer,flat
5310-01-101-856690228-1 INTERCHANGEABLE
Washer,flat
Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
5965-01-495-557890-228-1 INTERCHANGEABLE
Holder,handset
L3 Technologies, Inc.
3040-01-495-9553C-4192 INTERCHANGEABLE
Lever,manual Control
L3 Technologies, Inc.
3040-01-497-067090-228-1 ITEM 3 INTERCHANGEABLE
Cam,control
L3 Technologies, Inc.
Cross-Reference Index
Part NumberManufacturer
90228-1 United Technologies Corp Hamilton Sundstrand Corp (USA)
90228-1 PRIMARY Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
Related Parts
5310-00-102-4085INTERCHANGEABLE
WASHER,FLAT
5331-00-292-0577INTERCHANGEABLE
O-RING
MS28775-007
5310-00-756-6054INTERCHANGEABLE
WASHER,FLAT
5310-01-101-8566INTERCHANGEABLE
WASHER,FLAT
90228-1
5965-01-495-5578INTERCHANGEABLE
HOLDER,HANDSET
90-228-1
3040-01-495-9553INTERCHANGEABLE
LEVER,MANUAL CONTROL
C-4192
3040-01-497-0670INTERCHANGEABLE
CAM,CONTROL
90-228-1 ITEM 3

Frequently Asked Questions

What is NSN 5955-01-202-6250?

NSN 5955-01-202-6250 is a Crystal Unit,quartz, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5955 (No Item Name Available). Status: active.

What are the part numbers for NSN 5955-01-202-6250?

NSN 5955-01-202-6250 has 2 cross-referenced part numbers: 90228-1 (United Technologies Corp Hamilton Sundstrand Corp), 90228-1 (Hamilton Sundstrand Corporation Dba Collins Aerospace).

What NSN replaces 5955-01-202-6250?

There are 7 known substitutes for 5955-01-202-6250: 5310-00-102-4085, 5331-00-292-0577, 5310-00-756-6054 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 90228-1?

Key specifications for 90228-1: Terminal Length: 0.600 INCHES MINIMUM IN; Load Capacitance in Picofarads: 40.0 NOMINAL; Style Designator: HAT TYPE, 3 WIRE LEADS; Equivalent Resistance Value in Ohms: 25.0 MAXIMUM. 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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