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CS121 ✓ Verified by PartsTable
— · 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

The SCREW,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: KNURLED NO. 4, head_height: 0.483 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.375 INCHES NOMINAL IN, thread_length: 0.250 INCHES MINIMUM IN.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7420-00-134-3700, indicating validated use in U.S. government and defense logistics supply chains.

Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
CS121
NSN: 7420-00-134-3700
FSC: 7420
CAGE: 18520 — SHARP ELECTRONICS CORP PROFESSIONAL PRODUCTS DIV (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleKNURLED NO. 4
head_height0.483 INCHES NOMINAL IN
thread_class2A A
head_diameter0.375 INCHES NOMINAL IN
thread_length0.250 INCHES MINIMUM IN
fastener_length0.830 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
internal_drive_styleSLOT
nominal_thread_diameter0.190 INCHES IN
first_diameter_from_head0.130 INCHES NOMINAL IN
NSN7420-00-134-3700
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SCREW,EXTERNALLY RELIEVED BODY TITLE COMPONENT PN CS121 MFR SCREW,EXTERNALLY RELIE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
CS121Interchangeable
interchangeable cross-reference
interchangeable
6108SS1032-7Interchangeable
interchangeable cross-reference
interchangeable
209-1032P45Interchangeable
interchangeable cross-reference
interchangeable
412Interchangeable
Same NIIN cross-reference
interchangeable
M0D1117Interchangeable
Same NIIN cross-reference
interchangeable
610Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CS121?
CS121 is a SCREW,EXTERNALLY RELIEVED BODY.
What parts can replace CS121?
There are 8 known substitutes for CS121: CS121, 6108SS1032-7, 209-1032P45 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CS121?
CS121 is cataloged in the Federal Logistics Information System (FLIS) under NSN 7420-00-134-3700. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026