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PartsTable / COMPONENT / 1679S
1679S ✓ 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 material: STEEL CORROSION RESISTING OVERALL, head_style: FLAT, stem_style: DOUBLE GROOVED, head_height: 0.2000 INCHES NOMINAL IN, neck_radius: 0.3750 INCHES NOMINAL IN, stem_length: 4.7250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2805-00-718-3957, 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
1679S
NSN: 2805-00-718-3957
FSC: 2805
CAGE: 54509 — NAPASCO INTERNATIONAL INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleFLAT
stem_styleDOUBLE GROOVED
head_height0.2000 INCHES NOMINAL IN
neck_radius0.3750 INCHES NOMINAL IN
stem_length4.7250 INCHES NOMINAL IN
stem_diameter0.3410 INCHES NOMINAL IN
chamfer_length0.0312 INCHES NOMINAL IN
outside_diameter1.5000 INCHES NOMINAL IN
seat_angle_in_deg45.0
first_groove_width0.1250 INCHES NOMINAL IN
second_groove_width0.1100 INCHES NOMINAL IN
NSN2805-00-718-3957
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE,POPPET,ENGINE TITLE COMPONENT PN 1679S MFR VALVE,POPPET,ENGINE
KEY FEATURES
•
CHAMFER LENGTH: 0.0020 INCHES MINIMUM AND 0.0100 INCHES MAXIMUM IN
•
CHAMFER ANGLE IN DEG: 15.0
•
OUTSIDE DIAMETER: 1.4950 INCHES MINIMUM AND 1.5050 INCHES MAXIMUM IN
•
DISTANCE FROM FIRST GROOVE TO STEM END: 0.2890 INCHES NOMINAL IN
•
FSC APPLICATION DATA: GASOLINE ENGINE
•
METALLIC HARDNESS RATING AND LOCATION: 32.0 ROCKWELL C NOMINAL OVERALL
•
SECOND GROOVE WIDTH: 0.1050 INCHES MINIMUM AND 0.1150 INCHES MAXIMUM IN
•
SEAT ANGLE IN DEG: 46.0
TECHNICAL CHARACTERISTICS (FLIS)
CHAMFER LENGTH0.0020 INCHES MINIMUM AND 0.0100 INCHES MAXIMUM IN
CHAMFER ANGLE IN DEG15.0
OUTSIDE DIAMETER1.4950 INCHES MINIMUM AND 1.5050 INCHES MAXIMUM IN
DISTANCE FROM FIRST GROOVE TO STEM END0.2890 INCHES NOMINAL IN
FSC APPLICATION DATAGASOLINE ENGINE
METALLIC HARDNESS RATING AND LOCATION32.0 ROCKWELL C NOMINAL OVERALL
SECOND GROOVE WIDTH0.1050 INCHES MINIMUM AND 0.1150 INCHES MAXIMUM IN
SEAT ANGLE IN DEG46.0
SECOND GROOVE DIAMETER0.2970 INCHES MINIMUM AND 0.3030 INCHES MAXIMUM IN
NECK RADIUS0.3440 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
1896/10CInterchangeable
interchangeable cross-reference
interchangeable
1896/10Interchangeable
interchangeable cross-reference
interchangeable
1190Interchangeable
interchangeable cross-reference
interchangeable
1321-0610Interchangeable
interchangeable cross-reference
interchangeable
MS15718-29Interchangeable
interchangeable cross-reference
interchangeable
W500-610Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1679S?
1679S is a VALVE,POPPET,ENGINE.
What parts can replace 1679S?
There are 14 known substitutes for 1679S: 1896/10C, 1896/10, 1190 and 11 more. Substitute compatibility should be verified for your specific system.
Is 1679S still available?
1679S is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026