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990354 — VALVE,POPPET,ENGINE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

990354: VALVE,POPPET,ENGINE.

The VALVE,POPPET,ENGINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT, stem_style: GROOVED, head_height: 0.1400 INCHES NOMINAL IN, neck_radius: 0.4220 INCHES NOMINAL IN, groove_width: 0.1130 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 2805-01-107-5488, 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
990354
NSN: 2805-01-107-5488
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 04627 — HYSTER-YALE GROUP, INC. DIV HYSTER-YALE MATERIALS HANDLING (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT
stem_styleGROOVED
head_height0.1400 INCHES NOMINAL IN
neck_radius0.4220 INCHES NOMINAL IN
groove_width0.1130 INCHES NOMINAL IN
groove_diameter0.2500 INCHES NOMINAL IN
outside_diameter1.3150 INCHES NOMINAL IN
seat_angle_in_deg45.0
carbon_relief_grooveINCLUDED
distance_from_groove_to_stem_end0.1250 INCHES NOMINAL IN
NSN2805-01-107-5488
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE,POPPET,ENGINE TITLE COMPONENT PN 990354 MFR VALVE,POPPET,ENGINE
KEY FEATURES
•
HEAD HEIGHT: 0.1400 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 45.0
•
NECK RADIUS: 0.4220 INCHES NOMINAL IN
•
GROOVE DIAMETER: 0.2500 INCHES NOMINAL IN
•
DISTANCE FROM GROOVE TO STEM END: 0.1250 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.3150 INCHES NOMINAL IN
•
STEM STYLE: GROOVED
•
HEAD STYLE: FLAT
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.1400 INCHES NOMINAL IN
SEAT ANGLE IN DEG45.0
NECK RADIUS0.4220 INCHES NOMINAL IN
GROOVE DIAMETER0.2500 INCHES NOMINAL IN
DISTANCE FROM GROOVE TO STEM END0.1250 INCHES NOMINAL IN
OUTSIDE DIAMETER1.3150 INCHES NOMINAL IN
STEM STYLEGROOVED
HEAD STYLEFLAT
CARBON RELIEF GROOVEINCLUDED
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2805-00-000-4022 2805-00-001-0029 2805-00-001-3527 2805-00-001-3844 2805-00-001-3854 2805-00-001-6154 2805-00-001-6164 2805-00-001-6575
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 990354?
990354 is a VALVE,POPPET,ENGINE.
What is the NSN for 990354?
990354 is cataloged in the U.S. Government catalog under NSN 2805-01-107-5488. 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.