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Technical Data Sheet
PartsTable / COMPONENT / 311P
311P ✓ 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 BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 55.0 MILLIMETERS NOMINAL MM, overall_width: 29.0 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-218-3388, 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
311P
NSN: 4320-00-218-3388
FSC: 4320
CAGE: 93232 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS WRIGHT ENGINEERED PUMP DIVISION USE CAGE CODE 0UBG9 FOR CATALOGING (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter55.0 MILLIMETERS NOMINAL MM
overall_width29.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
shield_quantity1
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
overall_outside_diameter120.0 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
retainer_fabrication_methodPRESSED
standard_tolerance_designationABEC NO.1
NSN4320-00-218-3388
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BEARING,BALL,ANNULAR TITLE COMPONENT PN 311P MFR BEARING,BALL,ANNULAR
KEY FEATURES
•
RIGHT SIDE FLANGE THICKNESS: 0.469 INCHES NOMINAL IN
•
DISTANCE BELOW CENTERLINE: 0.250 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 10.750 INCHES NOMINAL IN
•
END TO FLANGE DISTANCE: 1.875 INCHES NOMINAL IN
•
INTERNAL FLANGE INSIDE DIAMETER: 5.125 INCHES NOMINAL IN
•
INTERNAL FLANGE LIP WIDTH: 1.016 INCHES NOMINAL IN
•
CORNER SHAPE: ROUND INSIDE RIGHT CORNER
TECHNICAL CHARACTERISTICS (FLIS)
RIGHT SIDE FLANGE THICKNESS0.469 INCHES NOMINAL IN
DISTANCE BELOW CENTERLINE0.250 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER10.750 INCHES NOMINAL IN
END TO FLANGE DISTANCE1.875 INCHES NOMINAL IN
INTERNAL FLANGE INSIDE DIAMETER5.125 INCHES NOMINAL IN
INTERNAL FLANGE LIP WIDTH1.016 INCHES NOMINAL IN
SPECIAL FEATURESMULTIPLE GROOVES ON INSIDE
CORNER SHAPEROUND INSIDE RIGHT CORNER
CORNER SHAPEROUND OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
4500-20V2029PC1T03Interchangeable
interchangeable cross-reference
interchangeable
4500-20V2066PC1T03Interchangeable
interchangeable cross-reference
interchangeable
4500-10F606PC3T05Interchangeable
interchangeable cross-reference
interchangeable
53242Interchangeable
interchangeable cross-reference
interchangeable
10183Interchangeable
interchangeable cross-reference
interchangeable
3769Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 311P?
311P is a BEARING,BALL,ANNULAR.
What parts can replace 311P?
There are 31 known substitutes for 311P: 4500-20V2029PC1T03, 4500-20V2066PC1T03, 4500-10F606PC3T05 and 28 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 311P?
311P is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-218-3388. 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