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121S7 — BEARING,ROLLER,THRUST

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

121S7: BEARING,ROLLER,THRUST.

The BEARING,ROLLER,THRUST is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY TERMINALS, body_style: PANEL MOUNT, head_style: KNURLED NO. 1, shell_type: SOLID, body_length: 3.047 INCHES NOMINAL IN, bonnet_type: INSIDE SCREW.

This part is cataloged in the U.S. Government catalog under NSN 3110-00-117-0756, 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
121S7
NSN: 3110-00-117-0756
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 12603 — CLARK EQUIPMENT CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY TERMINALS
body_stylePANEL MOUNT
head_styleKNURLED NO. 1
shell_typeSOLID
body_length3.047 INCHES NOMINAL IN
bonnet_typeINSIDE SCREW
head_height0.172 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.308 INCHES MINIMUM AND 0.318 INCHES MAXIMUM IN
terminal_typeSOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING
thread_length0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
actuator_styleRECTANGULAR
NSN3110-00-117-0756
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 121S7 · 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
SUBSTITUTES & CROSS-REFERENCES 8
T88Reference document
Same NSN cross-reference
Reference document — Secondary reference
654657Reference document
Same NSN cross-reference
Reference document — Secondary reference
838723Reference document
Same NSN cross-reference
Reference document — Secondary reference
151426Reference document
Same NSN cross-reference
Reference document — Secondary reference
107300Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS17169-5Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 121S7?
121S7 is a BEARING,ROLLER,THRUST.
What parts can replace 121S7?
There are 8 known substitutes for 121S7: T88, 654657, 838723 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 121S7?
121S7 is cataloged in the U.S. Government catalog under NSN 3110-00-117-0756. This indicates validated use in U.S. government and defense supply chains.
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