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PartsTable / COMPONENT / A171680
A171680 ✓ 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 head_style: FLAT, slot_width: 0.0790 INCHES MINIMUM AND 0.0810 INCHES MAXIMUM IN, stem_style: SLOTTED, head_height: 0.1875 INCHES MINIMUM AND 0.1975 INCHES MAXIMUM IN, neck_radius: 0.4375 INCHES NOMINAL IN, slot_length: 0.3300 INCHES MINIMUM AND 0.3380 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2805-00-517-1680, 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
A171680
NSN: 2805-00-517-1680
FSC: 2805
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
head_styleFLAT
slot_width0.0790 INCHES MINIMUM AND 0.0810 INCHES MAXIMUM IN
stem_styleSLOTTED
head_height0.1875 INCHES MINIMUM AND 0.1975 INCHES MAXIMUM IN
neck_radius0.4375 INCHES NOMINAL IN
slot_length0.3300 INCHES MINIMUM AND 0.3380 INCHES MAXIMUM IN
slot_radius0.0790 INCHES MINIMUM AND 0.0810 INCHES MAXIMUM IN
stem_length5.0312 INCHES NOMINAL IN
stem_diameter0.3720 INCHES MINIMUM AND 0.3730 INCHES MAXIMUM IN
chamfer_length0.0312 INCHES NOMINAL IN
outside_diameter1.6875 INCHES MINIMUM AND 1.6975 INCHES MAXIMUM IN
seat_angle_in_deg45.0
NSN2805-00-517-1680
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE,POPPET,ENGINE TITLE COMPONENT PN A171680 MFR VALVE,POPPET,ENGINE
KEY FEATURES
•
CARBON RELIEF GROOVE: NOT INCLUDED
•
METALLIC HARDNESS RATING AND LOCATION: 36.6 ROCKWELL C NOMINAL TIP
•
OUTSIDE DIAMETER: 1.6875 INCHES MINIMUM AND 1.6975 INCHES MAXIMUM IN
•
SEAT ANGLE IN DEG: 45.0
•
SLOT WIDTH: 0.0790 INCHES MINIMUM AND 0.0810 INCHES MAXIMUM IN
•
STEM DIAMETER: 0.3720 INCHES MINIMUM AND 0.3730 INCHES MAXIMUM IN
•
SLOT LENGTH: 0.3300 INCHES MINIMUM AND 0.3380 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CARBON RELIEF GROOVENOT INCLUDED
METALLIC HARDNESS RATING AND LOCATION36.6 ROCKWELL C NOMINAL TIP
METALLIC HARDNESS RATING AND LOCATION36.6 ROCKWELL C NOMINAL STEM
OUTSIDE DIAMETER1.6875 INCHES MINIMUM AND 1.6975 INCHES MAXIMUM IN
SEAT ANGLE IN DEG45.0
SLOT WIDTH0.0790 INCHES MINIMUM AND 0.0810 INCHES MAXIMUM IN
STEM DIAMETER0.3720 INCHES MINIMUM AND 0.3730 INCHES MAXIMUM IN
SLOT LENGTH0.3300 INCHES MINIMUM AND 0.3380 INCHES MAXIMUM IN
HEAD STYLEFLAT
DISTANCE FROM SLOT TO STEM END0.1063 INCHES MINIMUM AND 0.1093 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
10-377000-1Interchangeable
interchangeable cross-reference
interchangeable
57319Interchangeable
interchangeable cross-reference
interchangeable
147814Interchangeable
interchangeable cross-reference
interchangeable
V637Interchangeable
interchangeable cross-reference
interchangeable
57023Interchangeable
interchangeable cross-reference
interchangeable
282Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A171680?
A171680 is a VALVE,POPPET,ENGINE.
What parts can replace A171680?
There are 11 known substitutes for A171680: 10-377000-1, 57319, 147814 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A171680?
A171680 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2805-00-517-1680. 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