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Technical Data Sheet
PartsTable / COMPONENT / 121B646
121B646 ✓ 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 SHAFT,STRAIGHT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, end_similarity: IDENTICAL, overall_length: 1.880 INCHES NOMINAL IN, first_end_style: PLAIN, first_end_diameter: 0.1250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3040-00-807-5836, 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
121B646
NSN: 3040-00-807-5836
FSC: 3040
CAGE: 97942 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
end_similarityIDENTICAL
overall_length1.880 INCHES NOMINAL IN
first_end_stylePLAIN
first_end_diameter0.1250 INCHES NOMINAL IN
NSN3040-00-807-5836
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT,STRAIGHT TITLE COMPONENT PN 121B646 MFR SHAFT,STRAIGHT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
G312Interchangeable
interchangeable cross-reference
interchangeable
GH312Interchangeable
interchangeable cross-reference
interchangeable
A215Interchangeable
interchangeable cross-reference
interchangeable
2143924-1-2Interchangeable
interchangeable cross-reference
interchangeable
2604324-3Interchangeable
interchangeable cross-reference
interchangeable
AV5275-19A20Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 121B646?
121B646 is a SHAFT,STRAIGHT.
What parts can replace 121B646?
There are 12 known substitutes for 121B646: G312, GH312, A215 and 9 more. Substitute compatibility should be verified for your specific system.
Is 121B646 still available?
121B646 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026