PartsTable
Technical Data Sheet
Download PDF

121236C — VALVE,POPPET,ENGINE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

121236C: VALVE,POPPET,ENGINE.

The VALVE,POPPET,ENGINE is a the manufacturer industrial component. Key specifications include head_style: MUSHROOM, stem_style: GROOVED, head_height: 0.1875 INCHES NOMINAL IN, neck_radius: 0.3125 INCHES NOMINAL IN, stem_length: 3.1963 INCHES NOMINAL IN, groove_width: 0.2780 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 2805-00-371-5765, 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
121236C
NSN: 2805-00-371-5765
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 64104 — DRESSER, LLC (USA)
SPECIFICATIONS
head_styleMUSHROOM
stem_styleGROOVED
head_height0.1875 INCHES NOMINAL IN
neck_radius0.3125 INCHES NOMINAL IN
stem_length3.1963 INCHES NOMINAL IN
groove_width0.2780 INCHES NOMINAL IN
stem_diameter0.3090 INCHES MINIMUM AND 0.3100 INCHES MAXIMUM IN
chamfer_length0.0312 INCHES NOMINAL IN
groove_diameter0.2180 INCHES MINIMUM AND 0.2220 INCHES MAXIMUM IN
outside_diameter0.9375 INCHES NOMINAL IN
seat_angle_in_deg45.0
carbon_relief_grooveNOT INCLUDED
NSN2805-00-371-5765
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE,POPPET,ENGINE TITLE COMPONENT PN 121236C MFR VALVE,POPPET,ENGINE
KEY FEATURES
•
STEM DIAMETER: 0.3090 INCHES MINIMUM AND 0.3100 INCHES MAXIMUM IN
•
FSC APPLICATION DATA: GASOLINE ENGINE
•
HEAD HEIGHT: 0.1875 INCHES NOMINAL IN
•
STEM LENGTH: 3.1963 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 45.0
•
CHAMFER LENGTH: 0.0312 INCHES NOMINAL IN
•
NECK RADIUS: 0.3125 INCHES NOMINAL IN
•
GROOVE DIAMETER: 0.2180 INCHES MINIMUM AND 0.2220 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STEM DIAMETER0.3090 INCHES MINIMUM AND 0.3100 INCHES MAXIMUM IN
FSC APPLICATION DATAGASOLINE ENGINE
HEAD HEIGHT0.1875 INCHES NOMINAL IN
STEM LENGTH3.1963 INCHES NOMINAL IN
SEAT ANGLE IN DEG45.0
CHAMFER LENGTH0.0312 INCHES NOMINAL IN
NECK RADIUS0.3125 INCHES NOMINAL IN
GROOVE DIAMETER0.2180 INCHES MINIMUM AND 0.2220 INCHES MAXIMUM IN
METALLIC HARDNESS RATING AND LOCATION60.0 SHORE SCLEROSCOPE MINIMUM TIP
METALLIC HARDNESS RATING AND LOCATION40.0 ROCKWELL C MAXIMUM STEM
OTHER ITEMS IN FSC 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2805-00-000-4022 2805-00-001-0029 2805-00-001-3527 2805-00-001-3844 2805-00-001-3854 2805-00-001-6154 2805-00-001-6164 2805-00-001-6575
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 121236C?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 121236C?
121236C is a VALVE,POPPET,ENGINE.
What is the NSN for 121236C?
121236C is cataloged in the U.S. Government catalog under NSN 2805-00-371-5765. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 121236C

✓ 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.