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Technical Data Sheet
PartsTable / COMPONENT / PB3/4
PB3/4 ✓ 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 PB3/4 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-00-805-6531, 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
PB3/4
NSN: 3130-00-805-6531
FSC: 3130
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
Part NumberPB3/4
NSN3130-00-805-6531
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: PB3/4 · 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
•
BASE THICKNESS: 0.1000 INCHES NOMINAL IN
•
SHAFT END TYPE: OPEN
•
ROTATING ELEMENT LOCKING METHOD: SETSCREW LOCKING COLLAR
•
SEAL TYPE: CONTACT
•
MOUNTING HOLE DIAMETER: 0.3750 INCHES NOMINAL IN
•
HOUSING LENGTH: 0.8594 INCHES NOMINAL IN
•
MATERIAL: STEEL HOUSING
•
STYLE DESIGNATOR: PILLOW BLOCK, SEPARABLE W/O INNERLINER
TECHNICAL CHARACTERISTICS (FLIS)
BASE THICKNESS0.1000 INCHES NOMINAL IN
SHAFT END TYPEOPEN
ROTATING ELEMENT LOCKING METHODSETSCREW LOCKING COLLAR
SEAL TYPECONTACT
MOUNTING HOLE DIAMETER0.3750 INCHES NOMINAL IN
HOUSING LENGTH0.8594 INCHES NOMINAL IN
MATERIALSTEEL HOUSING
STYLE DESIGNATORPILLOW BLOCK, SEPARABLE W/O INNERLINER
MATERIALRUBBER SYNTHETIC SEAL
BLOCK TYPEFIXED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
716625-01Interchangeable
interchangeable cross-reference
interchangeable
P-212HInterchangeable
interchangeable cross-reference
interchangeable
PB201X3-4Interchangeable
interchangeable cross-reference
interchangeable
64502/710072Interchangeable
interchangeable cross-reference
interchangeable
9678M38P03Interchangeable
interchangeable cross-reference
interchangeable
5389-9Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PB3/4?
PB3/4 is a PB3/4.
What parts can replace PB3/4?
There are 11 known substitutes for PB3/4: 716625-01, P-212H, PB201X3-4 and 8 more. Substitute compatibility should be verified for your specific system.
Is PB3/4 still available?
PB3/4 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026