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C2121 — DISK,BUTTERFLY VALV

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

C2121: DISK,BUTTERFLY VALV.

The DISK,BUTTERFLY VALV is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, thickness: 0.030 INCHES NOMINAL IN, hole_diameter: 0.390 INCHES NOMINAL IN, overall_diameter: 0.750 INCHES NOMINAL IN, special_features: RECTANGULAR; 3.750 IN. LONG; 2.375 IN.

WIDE IN, peripheral_shape_style: ROUND. This part is cataloged in the U.S. Government catalog under NSN 2910-00-376-0729, 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
C2121
NSN: 2910-00-376-0729
NIINs: 003760729, 012228448, 014426557
FSC: 2910 — Engine Fuel System Components, Nonaircraft
CAGE: 79960 — ZENITH FUEL SYSTEMS LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
thickness0.030 INCHES NOMINAL IN
hole_diameter0.390 INCHES NOMINAL IN
overall_diameter0.750 INCHES NOMINAL IN
special_featuresRECTANGULAR; 3.750 IN. LONG; 2.375 IN. WIDE IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN2910-00-376-0729
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available DISK,BUTTERFLY VALV TITLE COMPONENT PN C2121 MFR DISK,BUTTERFLY VALV
SUBSTITUTES & CROSS-REFERENCES 1
328563Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is C2121?
C2121 is a DISK,BUTTERFLY VALV.
What parts can replace C2121?
There is 1 known substitute for C2121: 328563. Substitute compatibility should be verified for your specific system.
What is the NSN for C2121?
C2121 is cataloged in the U.S. Government catalog under NSN 2910-00-376-0729. 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.