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Technical Data Sheet

G42-21 — Technical Data Sheet

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DELL · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

Reserve/CMOS batteries maintain your computer’s internal settings and keep the CMOS data stored for your motherboard. This product has been tested and validated on Dell™ systems. It is supported by Dell Technical Support when used with a Dell system.

Please use the System Drill Down or the Service Tag look up feature for buying a battery. This will allow us to identify physically compatible batteries for your PC.<br><br>Please note that some of our replacement products are provided as kits or assemblies. These kits may contain additional parts required for installation.

In case a product is not sold as a kit or assembly, it may require complementary parts for ease of installation.<br><br>Refurbished Spare Parts are parts retrieved from Dell-branded systems that have been returned, some of which have never been used. All Dell refurbished spare parts are certified to comply with all original Dell factory performance specifications and come with a 90-day limited hardware warranty. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-773-8254, indicating validated use in U.S.

government and defense logistics supply chains.

WHERE IT FITS
G42-21
NSN: 3020-00-773-8254
FSC: 3020
CAGE: 00141 — ROLLER BEARING CO OF AMERICA, INC DIV PIC DESIGN (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
body_stylePLAIN, SOLID
bore_stylePLAIN BOTH ENDS
head_stylePAN
tooth_formSTANDARD
head_height0.065 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.210 INCHES NOMINAL IN
thread_length0.230 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN
pitch_diameter0.8740 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
pressure_angle20.0000 DEGREES
teeth_quantity21
NSN3020-00-773-8254
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: DELL GEAR,SPUR TITLE COMPONENT PN G42-21 MFR DELL GEAR,SPUR
KEY FEATURES
FACE NOMINAL WIDTH: 0.187 INCHES IN
PITCH DIAMETER: 0.8740 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
SURFACE TREATMENT: ANODIZE OVERALL
NOMINAL OVERALL LENGTH: 0.437 INCHES IN
BODY STYLE: PLAIN, SOLID
HUB NOMINAL DIAMETER: 0.500 INCHES FIRST END IN
BORE NOMINAL DIAMETER: 0.250 INCHES BOTH ENDS IN
TEETH QUANTITY: 21
TECHNICAL CHARACTERISTICS (FLIS)
FACE NOMINAL WIDTH0.187 INCHES IN
PITCH DIAMETER0.8740 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
SURFACE TREATMENTANODIZE OVERALL
NOMINAL OVERALL LENGTH0.437 INCHES IN
BODY STYLEPLAIN, SOLID
HUB NOMINAL DIAMETER0.500 INCHES FIRST END IN
BORE NOMINAL DIAMETER0.250 INCHES BOTH ENDS IN
TEETH QUANTITY21
BORE STYLEPLAIN BOTH ENDS
STYLE DESIGNATORPROTRUDING HUB
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
G42-21Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
RELATED PARTS 3
J2-169
CABLE ASSEMBLY,SPECIAL PURPOSE,E
WW-118
CHAIN,ROLLER
M-9048
GEAR,MIXER
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FREQUENTLY ASKED QUESTIONS
What is G42-21?
G42-21 is a GEAR,SPUR manufactured by DELL.
What parts can replace G42-21?
There is 1 known substitute for G42-21: G42-21. Substitute compatibility should be verified for your specific system.
What is the NSN for G42-21?
G42-21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-773-8254. This indicates validated use in U.S. government and defense supply chains.
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