PartsTable
Technical Data Sheet
SF-27 ✓ 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

RESISTOR,VARIABLE,WIRE WOUND,NON. Key specifications include material: PLASTIC CASE, seal_type: LABYRINTH, block_type: FIXED, plate_type: NEGATIVE OR POSITIVE, bore_diameter: 1.6875 INCHES NOMINAL IN, housing_width: 5.3750 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-00-227-3155, 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
SF-27
NSN: 3130-00-227-3155
FSC: 3130
CAGE: 02695 — MORSE INDUSTRIAL CORP SEALMASTER BEARING DIV SUB OF EMERSON ELECTRIC CO (USA)
SPECIFICATIONS
materialPLASTIC CASE
seal_typeLABYRINTH
block_typeFIXED
plate_typeNEGATIVE OR POSITIVE
bore_diameter1.6875 INCHES NOMINAL IN
cell_quantity6
housing_width5.3750 INCHES NOMINAL IN
overall_width6.750 INCHES NOMINAL IN
seal_locationBOTH ENDS
terminal_typeTAPER POST
alignment_typeSELF-ALIGNING
housing_length1.5625 INCHES NOMINAL IN
NSN3130-00-227-3155
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: SF-27 · 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
HOUSING WIDTH: 5.3750 INCHES NOMINAL IN
MOUNTING HOLE TYPE: ROUND, UNTHREADED
LUBRICATION FITTING TYPE: HYDRAULIC
STYLE DESIGNATOR: FLANGE BLOCK
MATERIAL: STEEL AND WOOL SEAL
ROLLING ELEMENT GROOVE QUANTITY: 1
MOUNTING HOLE DIAMETER: 0.5781 INCHES NOMINAL IN
LUBRICATION FITTING ANGLE FROM HORIZONTAL CENTERLINE: 90.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING WIDTH5.3750 INCHES NOMINAL IN
MOUNTING HOLE TYPEROUND, UNTHREADED
LUBRICATION FITTING TYPEHYDRAULIC
STYLE DESIGNATORFLANGE BLOCK
MATERIALSTEEL AND WOOL SEAL
ROLLING ELEMENT GROOVE QUANTITY1
MOUNTING HOLE DIAMETER0.5781 INCHES NOMINAL IN
LUBRICATION FITTING ANGLE FROM HORIZONTAL CENTERLINE90.0 DEGREES NOMINAL
LUBRICATION MATERIALGREASE
HOUSING LENGTH1.5625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 34
B33-48372Interchangeable
interchangeable cross-reference
interchangeable
AK0Interchangeable
interchangeable cross-reference
interchangeable
33-57769Interchangeable
interchangeable cross-reference
interchangeable
200217Interchangeable
interchangeable cross-reference
interchangeable
V40Interchangeable
interchangeable cross-reference
interchangeable
592-4758500 FIND 7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SF-27?
SF-27 is a RESISTOR,VARIABLE,WIRE WOUND,NON.
What parts can replace SF-27?
There are 34 known substitutes for SF-27: B33-48372, AK0, 33-57769 and 31 more. Substitute compatibility should be verified for your specific system.
Is SF-27 still available?
SF-27 is currently cancelled.
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