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Technical Data Sheet
PartsTable / COMPONENT / ALK3-23
ALK3-23 ✓ 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,DOUBLE ROD is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 400 OR NICKEL ALLOY R-405, bore_shape: STRAIGHT, thread_class: 3A STUD THREAD A, bore_diameter: 85.00 MILLIMETERS NOMINAL MM, overall_width: 28.0 MILLIMETERS NOMINAL MM, thread_length: 1.250 INCHES NOMINAL STUD THREAD IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-409-4364, 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
ALK3-23
NSN: 3120-00-409-4364
FSC: 3120
CAGE: 15860 — NEW HAMPSHIRE BALL BEARINGS INC DIV ASTRO DIVISION (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400 OR NICKEL ALLOY R-405
bore_shapeSTRAIGHT
thread_class3A STUD THREAD A
bore_diameter85.00 MILLIMETERS NOMINAL MM
overall_width28.0 MILLIMETERS NOMINAL MM
thread_length1.250 INCHES NOMINAL STUD THREAD IN
load_directionRADIAL
overall_length3.875 INCHES NOMINAL IN
surface_finishGROUND
shield_quantity2
special_featuresSQUARE EXTENSION 0.312 IN. LONG 0.250 WIDTH ACROSS FLATS ON BOTH ENDS IN
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
NSN3120-00-409-4364
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: ALK3-23 · 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 7
AA59584-117JCBEInterchangeable
interchangeable cross-reference
interchangeable
77517Interchangeable
interchangeable cross-reference
interchangeable
6217ZZInterchangeable
interchangeable cross-reference
interchangeable
VS7492Interchangeable
interchangeable cross-reference
interchangeable
D-77517Interchangeable
interchangeable cross-reference
interchangeable
701-50PC12Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ALK3-23?
ALK3-23 is a BEARING,DOUBLE ROD.
What parts can replace ALK3-23?
There are 7 known substitutes for ALK3-23: AA59584-117JCBE, 77517, 6217ZZ and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ALK3-23?
ALK3-23 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-409-4364. 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