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A1097S — VALVE,POPPET,ENGINE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

A1097S: VALVE,POPPET,ENGINE.

The VALVE,POPPET,ENGINE is a the manufacturer industrial component. Key specifications include material: COBALT ALLOY SEAT FACE, head_style: MUSHROOM, stem_style: GROOVED, head_height: 0.1562 INCHES NOMINAL IN, neck_radius: 0.3125 INCHES NOMINAL IN, stem_length: 4.3680 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 2805-00-516-9186, 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
A1097S
NSN: 2805-00-516-9186
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 77576 — STERLING DIV FEDERAL MOGUL CORP (USA)
SPECIFICATIONS
materialCOBALT ALLOY SEAT FACE
head_styleMUSHROOM
stem_styleGROOVED
head_height0.1562 INCHES NOMINAL IN
neck_radius0.3125 INCHES NOMINAL IN
stem_length4.3680 INCHES NOMINAL IN
groove_width0.2650 INCHES NOMINAL IN
stem_diameter0.3100 INCHES NOMINAL IN
chamfer_length0.0470 INCHES NOMINAL IN
groove_diameter0.2530 INCHES NOMINAL IN
outside_diameter1.2500 INCHES NOMINAL IN
unable_to_decodeUNABLE TO DECODE
NSN2805-00-516-9186
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE,POPPET,ENGINE TITLE COMPONENT PN A1097S MFR VALVE,POPPET,ENGINE
KEY FEATURES
•
STEM DIAMETER: 0.3100 INCHES NOMINAL IN
•
FSC APPLICATION DATA: GASOLINE ENGINE
•
HEAD HEIGHT: 0.1562 INCHES NOMINAL IN
•
STEM LENGTH: 4.3680 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 45.0
•
CHAMFER LENGTH: 0.0470 INCHES NOMINAL IN
•
NECK RADIUS: 0.3125 INCHES NOMINAL IN
•
GROOVE DIAMETER: 0.2530 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STEM DIAMETER0.3100 INCHES NOMINAL IN
FSC APPLICATION DATAGASOLINE ENGINE
HEAD HEIGHT0.1562 INCHES NOMINAL IN
STEM LENGTH4.3680 INCHES NOMINAL IN
SEAT ANGLE IN DEG45.0
CHAMFER LENGTH0.0470 INCHES NOMINAL IN
NECK RADIUS0.3125 INCHES NOMINAL IN
GROOVE DIAMETER0.2530 INCHES NOMINAL IN
DISTANCE FROM GROOVE TO STEM END0.2500 INCHES NOMINAL IN
OUTSIDE DIAMETER1.2500 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
1097SReference document
Same NSN cross-reference
Reference document — Secondary reference
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 A1097S?
A1097S is a VALVE,POPPET,ENGINE.
What parts can replace A1097S?
There is 1 known substitute for A1097S: 1097S. Substitute compatibility should be verified for your specific system.
What is the NSN for A1097S?
A1097S is cataloged in the U.S. Government catalog under NSN 2805-00-516-9186. 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.