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291-50800 — GUIDE,VALVE STEM

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

291-50800: GUIDE,VALVE STEM.

The GUIDE,VALVE STEM is a the manufacturer industrial component. Key specifications include material: STEEL, aa_end_radius: 0.020 INCHES NOMINAL IN, bb_end_radius: 0.020 INCHES NOMINAL IN, bore_diameter: 0.3750 INCHES NOMINAL IN, overall_length: 2.500 INCHES NOMINAL IN, aa_end_diameter: 0.622 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 2815-01-018-6469, 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
291-50800
NSN: 2815-01-018-6469
FSC: 2815 — Diesel Engines and Components
CAGE: 08742 — ASTEC AMERICA INC. (USA)
SPECIFICATIONS
materialSTEEL
aa_end_radius0.020 INCHES NOMINAL IN
bb_end_radius0.020 INCHES NOMINAL IN
bore_diameter0.3750 INCHES NOMINAL IN
overall_length2.500 INCHES NOMINAL IN
aa_end_diameter0.622 INCHES NOMINAL IN
bore_counterboreNOT INCLUDED
bore_countersinkNOT INCLUDED
outside_diameter0.928 INCHES NOMINAL IN
style_designatorPLAIN-SHOULDERED
bb_end_shank_diameter0.625 INCHES NOMINAL IN
major_diameter_length0.123 INCHES NOMINAL IN
NSN2815-01-018-6469
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GUIDE,VALVE STEM TITLE COMPONENT PN 291-50800 MFR GUIDE,VALVE STEM
KEY FEATURES
•
SHOULDER SECOND FILLET RADIUS: 0.020 INCHES NOMINAL IN
•
MAJOR DIAMETER LENGTH: 0.123 INCHES NOMINAL IN
•
BB END SHANK DIAMETER: 0.625 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN-SHOULDERED
•
BORE COUNTERBORE: NOT INCLUDED
•
OUTSIDE DIAMETER: 0.928 INCHES NOMINAL IN
•
AA END RADIUS: 0.020 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHOULDER SECOND FILLET RADIUS0.020 INCHES NOMINAL IN
MAJOR DIAMETER LENGTH0.123 INCHES NOMINAL IN
BB END SHANK DIAMETER0.625 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN-SHOULDERED
OVERALL LENGTH2.500 INCHES NOMINAL IN
BORE COUNTERBORENOT INCLUDED
OUTSIDE DIAMETER0.928 INCHES NOMINAL IN
AA END RADIUS0.020 INCHES NOMINAL IN
LENGTH FROM AA END TO LARGEST DIAMETER FACE0.450 INCHES NOMINAL IN
AA END DIAMETER0.622 INCHES NOMINAL IN
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

No substitute or cross-reference records for this part.

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 291-50800?
291-50800 is a GUIDE,VALVE STEM.
What is the NSN for 291-50800?
291-50800 is cataloged in the U.S. Government catalog under NSN 2815-01-018-6469. 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.