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685278C1 — VALVE,POPPET,ENGINE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

685278C1: VALVE,POPPET,ENGINE.

The VALVE,POPPET,ENGINE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING HEAD, head_style: FLAT, stem_style: GROOVED, head_height: 0.1750 INCHES NOMINAL IN, neck_radius: 1.0470 INCHES NOMINAL IN, stem_length: 7.1560 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 2815-01-030-2705, 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
685278C1
NSN: 2815-01-030-2705
FSC: 2815 — Diesel Engines and Components
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING HEAD
head_styleFLAT
stem_styleGROOVED
head_height0.1750 INCHES NOMINAL IN
neck_radius1.0470 INCHES NOMINAL IN
stem_length7.1560 INCHES NOMINAL IN
groove_width0.1340 INCHES NOMINAL IN
stem_diameter0.4330 INCHES NOMINAL IN
chamfer_length0.0310 INCHES NOMINAL IN
groove_diameter0.3600 INCHES NOMINAL IN
outside_diameter1.7050 INCHES NOMINAL IN
seat_angle_in_deg45.0
NSN2815-01-030-2705
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE,POPPET,ENGINE TITLE COMPONENT PN 685278C1 MFR VALVE,POPPET,ENGINE
KEY FEATURES
•
STEM DIAMETER: 0.4330 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.1750 INCHES NOMINAL IN
•
STEM LENGTH: 7.1560 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 45.0
•
CHAMFER LENGTH: 0.0310 INCHES NOMINAL IN
•
NECK RADIUS: 1.0470 INCHES NOMINAL IN
•
GROOVE DIAMETER: 0.3600 INCHES NOMINAL IN
•
DISTANCE FROM GROOVE TO STEM END: 0.3120 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STEM DIAMETER0.4330 INCHES NOMINAL IN
HEAD HEIGHT0.1750 INCHES NOMINAL IN
STEM LENGTH7.1560 INCHES NOMINAL IN
SEAT ANGLE IN DEG45.0
CHAMFER LENGTH0.0310 INCHES NOMINAL IN
NECK RADIUS1.0470 INCHES NOMINAL IN
GROOVE DIAMETER0.3600 INCHES NOMINAL IN
DISTANCE FROM GROOVE TO STEM END0.3120 INCHES NOMINAL IN
OUTSIDE DIAMETER1.7050 INCHES NOMINAL IN
STEM STYLEGROOVED
OTHER ITEMS IN FSC 2815 — Diesel Engines and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2815-00-011-9099 2815-00-017-1875 2815-00-024-4185 2815-00-033-1482 2815-00-036-5350 2815-00-179-7630 2815-00-346-4639 2815-00-592-5308
SUBSTITUTES & CROSS-REFERENCES 1
687972C1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 685278C1?
685278C1 is a VALVE,POPPET,ENGINE.
What parts can replace 685278C1?
There is 1 known substitute for 685278C1: 687972C1. Substitute compatibility should be verified for your specific system.
What is the NSN for 685278C1?
685278C1 is cataloged in the U.S. Government catalog under NSN 2815-01-030-2705. 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.