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P679 — PUMP,COOLING SYSTEM,ENGINE

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

P679: PUMP,COOLING SYSTEM,ENGINE.

The PUMP,COOLING SYSTEM,ENGINE is a the manufacturer thermal management component critical for maintaining optimal operating temperatures in enterprise hardware. Key specifications include diameter: 1.500 INCHES NOMINAL IN, material: STEEL OVERALL, bore_shape: STRAIGHT, usage_design: VEHICULAR, bore_diameter: 25.00 MILLIMETERS NOMINAL MM, contact_angle: 25.0 DEGREES MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-156-4689, 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
P679
NSN: 3110-00-156-4689
NIINs: 001564689, 004509313, 014495016
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 55509 — COOPER CAMERON CORP AJAX-SUPERIOR DIV (USA)
SPECIFICATIONS
diameter1.500 INCHES NOMINAL IN
materialSTEEL OVERALL
bore_shapeSTRAIGHT
usage_designVEHICULAR
bore_diameter25.00 MILLIMETERS NOMINAL MM
contact_angle25.0 DEGREES MAXIMUM
overall_width0.8125 INCHES NOMINAL IN
load_directionANGULAR
surface_finishGROUND
inside_diameter0.312 INCHES NOMINAL IN
style_designatorLOADING GROOVE, NON-SEPARABLE
lubrication_materialGREASE
NSN3110-00-156-4689
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: P679 · 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
KEY FEATURES
•
RETAINER FABRICATION METHOD: PRESSED
•
LUBRICATION MATERIAL: GREASE
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 52.00 MILLIMETERS NOMINAL MM
•
BORE SHAPE: STRAIGHT
TYPICAL APPLICATIONS
  • Server thermal management and cooling
  • Hot-swap fan replacement in production environments
  • Redundant cooling for high-availability systems
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODPRESSED
LUBRICATION MATERIALGREASE
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
STYLE DESIGNATORLOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH0.8125 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER52.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
NONDEFINITIVE SPEC/STD DATA00 GRADE AND 143 TYPE
CONTACT ANGLE25.0 DEGREES MAXIMUM
SUBSTITUTES & CROSS-REFERENCES 8
5205X1AReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
PC5150221Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5205X1Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
5205Reference document
Same NSN cross-reference
Reference document — Secondary reference
SP34Reference document
Same NSN cross-reference
Reference document — Secondary reference
5205X1AWP2Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is P679?
P679 is a PUMP,COOLING SYSTEM,ENGINE.
What parts can replace P679?
There are 8 known substitutes for P679: 5205X1A, PC5150221, 5205X1 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for P679?
P679 is cataloged in the U.S. Government catalog under NSN 3110-00-156-4689. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.