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Technical Data Sheet
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B125CP — Technical Data Sheet

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— · 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 BALL,BEARING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, style_designator: BALL, end_item_identification: VALVE,ANGLE RELIEF PSI, 1/2" X 3/4" IPS, rolling_element_diameter: 0.1250 INCHES NOMINAL IN, criticality_code_justification: ZZZY, material_document_and_classification: ASTM A276 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3110-01-481-0578, 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
B125CP
NSN: 3110-01-481-0578
FSC: 3110
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
style_designatorBALL
end_item_identificationVALVE,ANGLE RELIEF PSI, 1/2" X 3/4" IPS
rolling_element_diameter0.1250 INCHES NOMINAL IN
criticality_code_justificationZZZY
material_document_and_classificationASTM A276 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
reference_number_differentiating_characteristicsCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
NSN3110-01-481-0578
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: B125CP · 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
•
ROLLING ELEMENT DIAMETER: 0.1250 INCHES NOMINAL IN
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A276 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
STYLE DESIGNATOR: BALL
•
MATERIAL: STEEL COMP 304 OVERALL
TECHNICAL CHARACTERISTICS
ROLLING ELEMENT DIAMETER0.1250 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATIONZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A276 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORBALL
MATERIALSTEEL COMP 304 OVERALL
END ITEM IDENTIFICATIONVALVE,ANGLE RELIEF PSI, 1/2" X 3/4" IPS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
B1-10InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B1-BInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B1-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AST2-5InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5920-99-9706855InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B1-2.5InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B125CP?
B125CP is a BALL,BEARING.
What parts can replace B125CP?
There are 19 known substitutes for B125CP: B1-10, B1-B, B1-1 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B125CP?
B125CP is cataloged in the Federal Logistics Information System under NSN 3110-01-481-0578. 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: September 2026