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Technical Data Sheet
PartsTable / COMPONENT / 1921S
1921S ✓ 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 angle: 30.0 DEGREES, material: STEEL OVERALL, style_designator: ANGLE, surface_treatment: PASSIVATE OVERALL, end_item_identification: REEVING ASSEBLY, media_for_which_designed: GREASE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2805-00-847-6694, 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
1921S
NSN: 2805-00-847-6694
FSC: 2805
CAGE: 19239 — ECHLIN INC (USA)
SPECIFICATIONS
angle30.0 DEGREES
materialSTEEL OVERALL
style_designatorANGLE
surface_treatmentPASSIVATE OVERALL
end_item_identificationREEVING ASSEBLY
media_for_which_designedGREASE
part_name_assigned_by_controlling_agencyFITTING,LUBRICATION 30 DEGREES
NSN2805-00-847-6694
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE,POPPET,ENGINE TITLE COMPONENT PN 1921S MFR VALVE,POPPET,ENGINE
KEY FEATURES
•
HEAD STYLE: FLAT
•
STEM LENGTH: 4.3125 INCHES NOMINAL IN
•
FIRST GROOVE DIAMETER: 0.3125 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 45.0
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
SECOND GROOVE DIAMETER: 0.3125 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.5468 INCHES NOMINAL IN
•
STEM STYLE: DOUBLE GROOVED
TECHNICAL CHARACTERISTICS (FLIS)
HEAD STYLEFLAT
STEM LENGTH4.3125 INCHES NOMINAL IN
FIRST GROOVE DIAMETER0.3125 INCHES NOMINAL IN
SEAT ANGLE IN DEG45.0
MATERIALSTEEL CORROSION RESISTING OVERALL
SECOND GROOVE DIAMETER0.3125 INCHES NOMINAL IN
OUTSIDE DIAMETER1.5468 INCHES NOMINAL IN
STEM STYLEDOUBLE GROOVED
NECK RADIUS0.3125 INCHES NOMINAL IN
SECOND GROOVE WIDTH0.0625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
1921-SInterchangeable
interchangeable cross-reference
interchangeable
27370Interchangeable
interchangeable cross-reference
interchangeable
V-2142SInterchangeable
Same NIIN cross-reference
interchangeable
AS2613Interchangeable
Same NIIN cross-reference
interchangeable
5V-2142SInterchangeable
Same NIIN cross-reference
interchangeable
D-1921SInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1921S?
1921S is a VALVE,POPPET,ENGINE.
What parts can replace 1921S?
There are 6 known substitutes for 1921S: 1921-S, 27370, V-2142S and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1921S?
1921S is cataloged in the Federal Logistics Information System (FLIS) under NSN 2805-00-847-6694. 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