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263441 — VALVE,POPPET,ENGINE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

263441: VALVE,POPPET,ENGINE.

The VALVE,POPPET,ENGINE is a the manufacturer industrial component. Key specifications include material: STEEL, style_designator: SQUARE, ONE BOLT HOLE CIRCLE, flange_section_style: PLAIN FACE (BLIND). This part is cataloged in the U.S.

Government catalog under NSN 2805-00-351-6683, 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
263441
NSN: 2805-00-351-6683
NIINs: 003516683, 012022077
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 71995 — DRESSER INDUSTRIES INC WAUKESHA ENGINE DIV (USA)
SPECIFICATIONS
materialSTEEL
style_designatorSQUARE, ONE BOLT HOLE CIRCLE
bolt_hole_quantity4
flange_section_stylePLAIN FACE (BLIND)
NSN2805-00-351-6683
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE,POPPET,ENGINE TITLE COMPONENT PN 263441 MFR VALVE,POPPET,ENGINE
KEY FEATURES
•
STEM DIAMETER: 0.4375 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.1870 INCHES NOMINAL IN
•
SECOND GROOVE WIDTH: 0.0760 INCHES NOMINAL IN
•
STEM LENGTH: 6.2650 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 45.0
•
CHAMFER LENGTH: 0.0310 INCHES NOMINAL IN
•
NECK RADIUS: 0.3120 INCHES NOMINAL IN
•
METALLIC HARDNESS RATING AND LOCATION: 28.0 ROCKWELL C MINIMUM STEM
TECHNICAL CHARACTERISTICS
STEM DIAMETER0.4375 INCHES NOMINAL IN
HEAD HEIGHT0.1870 INCHES NOMINAL IN
SECOND GROOVE WIDTH0.0760 INCHES NOMINAL IN
STEM LENGTH6.2650 INCHES NOMINAL IN
SEAT ANGLE IN DEG45.0
CHAMFER LENGTH0.0310 INCHES NOMINAL IN
NECK RADIUS0.3120 INCHES NOMINAL IN
METALLIC HARDNESS RATING AND LOCATION28.0 ROCKWELL C MINIMUM STEM
METALLIC HARDNESS RATING AND LOCATION37.0 ROCKWELL C MAXIMUM STEM
METALLIC HARDNESS RATING AND LOCATION45.0 ROCKWELL C MINIMUM TIP
SUBSTITUTES & CROSS-REFERENCES 1
15-200Reference 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 263441?
263441 is a VALVE,POPPET,ENGINE.
What parts can replace 263441?
There is 1 known substitute for 263441: 15-200. Substitute compatibility should be verified for your specific system.
What is the NSN for 263441?
263441 is cataloged in the U.S. Government catalog under NSN 2805-00-351-6683. 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.