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PartsTable / COMPONENT / YTL1S61-842PC44
YTL1S61-842PC44 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The VALVE,POPPET,ENGINE is a the manufacturer industrial component. Key specifications include head_style: FLAT, stem_style: GROOVED, head_height: 0.1719 INCHES NOMINAL IN, neck_radius: 0.3750 INCHES NOMINAL IN, stem_length: 5.8281 INCHES NOMINAL IN, groove_width: 0.0950 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2815-00-288-3639, 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
YTL1S61-842PC44
NSN: 2815-00-288-3639
FSC: 2815
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
head_styleFLAT
stem_styleGROOVED
head_height0.1719 INCHES NOMINAL IN
neck_radius0.3750 INCHES NOMINAL IN
stem_length5.8281 INCHES NOMINAL IN
groove_width0.0950 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM IN
stem_diameter0.3720 INCHES MINIMUM AND 0.3730 INCHES MAXIMUM IN
chamfer_length0.0312 INCHES NOMINAL IN
groove_diameter0.3290 INCHES MINIMUM AND 0.3350 INCHES MAXIMUM IN
outside_diameter1.5000 INCHES NOMINAL IN
seat_angle_in_deg45.0
carbon_relief_grooveNOT INCLUDED
NSN2815-00-288-3639
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE,POPPET,ENGINE TITLE COMPONENT PN YTL1S61-842PC44 MFR VALVE,POPPET,ENGINE
KEY FEATURES
•
CARBON RELIEF GROOVE: NOT INCLUDED
•
HEAD HEIGHT: 0.1719 INCHES NOMINAL IN
•
NECK RADIUS: 0.3750 INCHES NOMINAL IN
•
METALLIC HARDNESS RATING AND LOCATION: 36.0 ROCKWELL C MINIMUM STEM
•
FSC APPLICATION DATA: DIESEL ENGINE
•
GROOVE WIDTH: 0.0950 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM IN
•
STEM DIAMETER: 0.3720 INCHES MINIMUM AND 0.3730 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CARBON RELIEF GROOVENOT INCLUDED
HEAD HEIGHT0.1719 INCHES NOMINAL IN
NECK RADIUS0.3750 INCHES NOMINAL IN
METALLIC HARDNESS RATING AND LOCATION36.0 ROCKWELL C MINIMUM STEM
FSC APPLICATION DATADIESEL ENGINE
METALLIC HARDNESS RATING AND LOCATION43.0 ROCKWELL C MAXIMUM STEM
GROOVE WIDTH0.0950 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM IN
STEM DIAMETER0.3720 INCHES MINIMUM AND 0.3730 INCHES MAXIMUM IN
SEAT ANGLE IN DEG45.0
OUTSIDE DIAMETER1.5000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
3445-1335-1383Interchangeable
interchangeable cross-reference
interchangeable
R61Interchangeable
interchangeable cross-reference
interchangeable
270471Interchangeable
interchangeable cross-reference
interchangeable
R6IInterchangeable
interchangeable cross-reference
interchangeable
8201-46Interchangeable
interchangeable cross-reference
interchangeable
A1724Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is YTL1S61-842PC44?
YTL1S61-842PC44 is a VALVE,POPPET,ENGINE.
What parts can replace YTL1S61-842PC44?
There are 16 known substitutes for YTL1S61-842PC44: 3445-1335-1383, R61, 270471 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for YTL1S61-842PC44?
YTL1S61-842PC44 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2815-00-288-3639. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026