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Technical Data Sheet
4031871 ✓ 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,ROLLER,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include material: STEEL INNER RING, bore_shape: STRAIGHT, bore_diameter: 60.0 MILLIMETERS NOMINAL MM, overall_width: 28.00 MILLIMETERS NOMINAL MM, surface_finish: GROUND, style_designator: DOUBLE ROW, SPHERICAL ROLLERS, SELF-CONTAINED, OUTER AND INNER RACEWAYS CONCAVE, NON-SEPARABLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-572-4931, 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
4031871
NSN: 5120-00-572-4931
FSC: 5120
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
materialSTEEL INNER RING
bore_shapeSTRAIGHT
bore_diameter60.0 MILLIMETERS NOMINAL MM
overall_width28.00 MILLIMETERS NOMINAL MM
surface_finishGROUND
style_designatorDOUBLE ROW, SPHERICAL ROLLERS, SELF-CONTAINED, OUTER AND INNER RACEWAYS CONCAVE, NON-SEPARABLE
end_item_identificationMRAP - COUGAR
overall_outside_diameter110.00 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
retainer_fabrication_methodPRESSED
standard_tolerance_designationRBEC NO.1
NSN5120-00-572-4931
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BEARING,ROLLER,SELF-ALIGNING TITLE COMPONENT PN 4031871 MFR BEARING,ROLLER,SELF-AL
KEY FEATURES
DRIVE SURFACE SIZE: 0.497 INCHES MINIMUM AND 0.502 INCHES MAXIMUM FIRST END IN
MATERIAL: STEEL COMP 4130 OVERALL
SURFACE TREATMENT: CHROMIUM OR NICKEL OR OXIDE OVERALL
WRENCHING SURFACE SIZE: 0.500 INCHES NOMINAL SINGLE END IN
WRENCHING SURFACE SHAPE: SQUARE SINGLE END INTERNAL
DRIVE END SHAPE: SQUARE SINGLE END INTERNAL
WRENCHING END HEAD THICKNESS: 0.620 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
DRIVE SURFACE SIZE0.497 INCHES MINIMUM AND 0.502 INCHES MAXIMUM FIRST END IN
MATERIALSTEEL COMP 4130 OVERALL
SURFACE TREATMENTCHROMIUM OR NICKEL OR OXIDE OVERALL
WRENCHING SURFACE SIZE0.500 INCHES NOMINAL SINGLE END IN
WRENCHING SURFACE SHAPESQUARE SINGLE END INTERNAL
DRIVE END SHAPESQUARE SINGLE END INTERNAL
OVERALL LENGTH3.820 INCHES NOMINAL IN
WRENCHING END HEAD THICKNESS0.620 INCHES NOMINAL IN
DRIVE END HEAD THICKNESS1.180 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
12641152Interchangeable
interchangeable cross-reference
interchangeable
3243765Interchangeable
interchangeable cross-reference
interchangeable
1706-003Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4031871?
4031871 is a BEARING,ROLLER,SELF-ALIGNING.
What parts can replace 4031871?
There are 3 known substitutes for 4031871: 12641152, 3243765, 1706-003. Substitute compatibility should be verified for your specific system.
What is the NSN for 4031871?
4031871 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-572-4931. This indicates validated use in U.S. government and defense supply chains.
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