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G-121 — CABLE ASSEMBLY,POWER,ELECTRICAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

G-121: CABLE ASSEMBLY,POWER,ELECTRICAL.

CABLE ASSEMBLY,POWER,ELECTRICAL. Key specifications include material: STEEL COMP 303S AND STEEL COMP 303SE OVERALL, body_style: PLAIN, SOLID, bore_style: PLAIN BOTH ENDS, tooth_form: STANDARD, pitch_diameter: 0.4375 INCHES NOMINAL IN, pressure_angle: 20.0000 DEGREES. This part is cataloged in the U.S.

Government catalog under NSN 3455-00-228-5238, 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
G-121
NSN: 3455-00-228-5238
NIINs: 002285238, 007117003, 016415514
FSC: 3455 — Cutting Tools for Machine Tools
CAGE: 71201 — BRUBAKER TOOL CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 303S AND STEEL COMP 303SE OVERALL
body_stylePLAIN, SOLID
bore_stylePLAIN BOTH ENDS
tooth_formSTANDARD
pitch_diameter0.4375 INCHES NOMINAL IN
pressure_angle20.0000 DEGREES
teeth_quantity21
hardness_rating75.0 ROCKWELL B MINIMUM AND 83.0 ROCKWELL B MAXIMUM OVERALL
special_features1 0.138 IN. DIA THREADED HOLE ON HUB FOR POSITIONING IN
style_designatorPROTRUDING HUB
surface_treatmentPASSIVATE OVERALL
face_nominal_width0.125 INCHES IN
NSN3455-00-228-5238
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CABLE ASSEMBLY,POWER,ELECTRICAL TITLE COMPONENT PN G-121 MFR CABLE ASSEMBLY,POWER,E
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
SUBSTITUTES & CROSS-REFERENCES 8
31433Reference document
Same NSN cross-reference
Reference document — Secondary reference
42230Reference document
Same NSN cross-reference
Reference document — Secondary reference
716-053210Reference document
Same NSN cross-reference
Reference document — Secondary reference
794Reference document
Same NSN cross-reference
Reference document — Secondary reference
55254Reference document
Same NSN cross-reference
Reference document — Secondary reference
SF-12Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is G-121?
G-121 is a CABLE ASSEMBLY,POWER,ELECTRICAL.
What parts can replace G-121?
There are 8 known substitutes for G-121: 31433, 42230, 716-053210 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for G-121?
G-121 is cataloged in the U.S. Government catalog under NSN 3455-00-228-5238. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.