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F91D161 ✓ 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 LOCK,VALVE SPRING RETAINER is a the manufacturer industrial component. Key specifications include material: TUNGSTEN CARBIDE HEAD, head_shape: INVERTED CONE, special_features: SHANK L 36MM MM, head_size_designation: 010, handpiece_type_for_which_designed: FRICTION GRIP. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6520-01-341-4555, 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
F91D161
NSN: 6520-01-341-4555
FSC: 6520
CAGE: 66735 — AIR FORCE MEDICAL LOGISTICS OFFICE (USA)
SPECIFICATIONS
materialTUNGSTEN CARBIDE HEAD
head_shapeINVERTED CONE
special_featuresSHANK L 36MM MM
head_size_designation010
handpiece_type_for_which_designedFRICTION GRIP
NSN6520-01-341-4555
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LOCK,VALVE SPRING RETAINER TITLE COMPONENT PN F91D161 MFR LOCK,VALVE SPRING RETA
KEY FEATURES
•
MATERIAL: TUNGSTEN CARBIDE HEAD
•
HEAD SHAPE: INVERTED CONE
•
HANDPIECE TYPE FOR WHICH DESIGNED: FRICTION GRIP
•
HEAD SIZE DESIGNATION: 010
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALTUNGSTEN CARBIDE HEAD
HEAD SHAPEINVERTED CONE
SPECIAL FEATURESSHANK L 36MM MM
HANDPIECE TYPE FOR WHICH DESIGNEDFRICTION GRIP
HEAD SIZE DESIGNATION010
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
H2Interchangeable
interchangeable cross-reference
interchangeable
297-4020-6Interchangeable
interchangeable cross-reference
interchangeable
PHT150CInterchangeable
interchangeable cross-reference
interchangeable
H2BInterchangeable
interchangeable cross-reference
interchangeable
H-2FGInterchangeable
interchangeable cross-reference
interchangeable
VK152Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F91D161?
F91D161 is a LOCK,VALVE SPRING RETAINER.
What parts can replace F91D161?
There are 17 known substitutes for F91D161: H2, 297-4020-6, PHT150C and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for F91D161?
F91D161 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6520-01-341-4555. 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