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Technical Data Sheet
PartsTable / COMPONENT / 188165-99
188165-99 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The FOLLOWER,CAM is a the manufacturer industrial component. Key specifications include material: STEEL INNER RING, bore_shape: STRAIGHT, bore_diameter: 2.1345 INCHES MINIMUM AND 2.1355 INCHES MAXIMUM IN, contact_angle: 25.0 DEGREES NOMINAL, load_direction: ANGULAR, overall_height: 0.7400 INCHES MINIMUM AND 0.7500 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 3110-01-111-3258, 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
188165-99
NSN: 3110-01-111-3258
FSC: 3110
CAGE: 03956 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL INNER RING
bore_shapeSTRAIGHT
bore_diameter2.1345 INCHES MINIMUM AND 2.1355 INCHES MAXIMUM IN
contact_angle25.0 DEGREES NOMINAL
load_directionANGULAR
overall_height0.7400 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
surface_finishGROUND
inner_ring_width0.5800 INCHES NOMINAL IN
outer_ring_width0.5310 INCHES NOMINAL IN
special_featuresBANDED OD,BAND EXTENDS BEYOND WIDTH OF RINGS,ONE FACE OF OUTER RING FORMS LIP WHICH EXTENDS DOWN BEYOND FACE OF INNER RING
style_designatorCLUTCH RELEASE
end_item_identificationCOMBAT THEATER TRI-TAC COMMUNICATIONS PROGRAM 478T
NSN3110-01-111-3258
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 188165-99 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
207MAD1Interchangeable
interchangeable cross-reference
interchangeable
CT34Interchangeable
interchangeable cross-reference
interchangeable
FPN906Interchangeable
interchangeable cross-reference
interchangeable
P-70CInterchangeable
interchangeable cross-reference
interchangeable
J9183Interchangeable
interchangeable cross-reference
interchangeable
CR-34Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 188165-99?
188165-99 is a FOLLOWER,CAM.
What parts can replace 188165-99?
There are 7 known substitutes for 188165-99: 207MAD1, CT34, FPN906 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 188165-99?
188165-99 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-111-3258. 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