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PartsTable / COMPONENT / SA2-3-16
SA2-3-16 ✓ 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 UNIT,BALL is a the manufacturer industrial component. Key specifications include material: STEEL SEAL, seal_type: LABYRINTH, block_type: FLOATING, base_length: 3.1250 INCHES NOMINAL IN, bore_diameter: 2.1875 INCHES NOMINAL IN, housing_width: 11.3750 INCHES NOMINAL 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 3130-00-159-1485, 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
SA2-3-16
NSN: 3130-00-159-1485
FSC: 3130
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialSTEEL SEAL
seal_typeLABYRINTH
block_typeFLOATING
base_length3.1250 INCHES NOMINAL IN
bore_diameter2.1875 INCHES NOMINAL IN
housing_width11.3750 INCHES NOMINAL IN
seal_locationONE END
alignment_typeSELF-ALIGNING
base_thickness0.8125 INCHES NOMINAL IN
housing_height5.6875 INCHES NOMINAL IN
shaft_end_typeOPEN
collar_locationONE END
NSN3130-00-159-1485
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: SA2-3-16 · 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
KEY FEATURES
•
HEIGHT FROM BOTTOM OF BASE TO BORE CENTERLINE: 3.1250 INCHES NOMINAL IN
•
BLOCK TYPE: FLOATING
•
COLLAR LOCATION: ONE END
•
HOUSING WIDTH: 11.3750 INCHES NOMINAL IN
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
ASSEMBLY OVERALL LENGTH: 4.0000 INCHES NOMINAL IN
•
FEATURES PROVIDED: GROUND ROLLING ELEMENT GROOVE
•
MATERIAL: STEEL SEAL
TECHNICAL CHARACTERISTICS (FLIS)
HEIGHT FROM BOTTOM OF BASE TO BORE CENTERLINE3.1250 INCHES NOMINAL IN
BLOCK TYPEFLOATING
COLLAR LOCATIONONE END
HOUSING WIDTH11.3750 INCHES NOMINAL IN
INTERNAL FIT-UP DESIGNATIONSTANDARD
ASSEMBLY OVERALL LENGTH4.0000 INCHES NOMINAL IN
FEATURES PROVIDEDGROUND ROLLING ELEMENT GROOVE
MATERIALSTEEL SEAL
ROTATING ELEMENT LOCKING METHODSETSCREW LOCKING COLLAR
STYLE DESIGNATORPILLOW BLOCK, SOLID
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
121562-1Interchangeable
interchangeable cross-reference
interchangeable
1991Interchangeable
interchangeable cross-reference
interchangeable
33412Interchangeable
interchangeable cross-reference
interchangeable
5242Interchangeable
interchangeable cross-reference
interchangeable
RCF19-29Interchangeable
interchangeable cross-reference
interchangeable
TDC115Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SA2-3-16?
SA2-3-16 is a BEARING UNIT,BALL.
What parts can replace SA2-3-16?
There are 17 known substitutes for SA2-3-16: 121562-1, 1991, 33412 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SA2-3-16?
SA2-3-16 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-00-159-1485. 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