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Technical Data Sheet
PartsTable / COMPONENT / 7R4ZZ
7R4ZZ ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 0.2497 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, overall_width: 0.1910 INCHES MINIMUM AND 0.1960 INCHES MAXIMUM IN, 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 3120-01-521-9622, 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
7R4ZZ
NSN: 3120-01-521-9622
FSC: 3120
CAGE: 63600 — CURTISS-WRIGHT FLOW CONTROL CORPORATION DBA CURTISS-WRIGHT FLOW CONTROL CO DIV CURTISS-WRIGHT / NU-TORQUE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter0.2497 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
overall_width0.1910 INCHES MINIMUM AND 0.1960 INCHES MAXIMUM IN
seal_quantity2
load_directionRADIAL
surface_finishGROUND
shield_quantity2
special_featuresONE THIRD FULL OF LUBRICANT
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
bearing_seal_typeCONTACT
internal_clearance0.0004 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN
NSN3120-01-521-9622
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 7R4ZZ · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
Z99R4XR1HU6Interchangeable
interchangeable cross-reference
interchangeable
Z99R4XR1MV-XX3Interchangeable
interchangeable cross-reference
interchangeable
109000406Interchangeable
interchangeable cross-reference
interchangeable
07-112610Interchangeable
interchangeable cross-reference
interchangeable
R4ZZInterchangeable
interchangeable cross-reference
interchangeable
03-6001-02Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7R4ZZ?
7R4ZZ is a BEARING,SLEEVE.
What parts can replace 7R4ZZ?
There are 19 known substitutes for 7R4ZZ: Z99R4XR1HU6, Z99R4XR1MV-XX3, 109000406 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7R4ZZ?
7R4ZZ is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-521-9622. 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