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Technical Data Sheet
PartsTable / COMPONENT / BS4-1444PC12
BS4-1444PC12 ✓ 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 RESISTOR,FIXED,COMPOSITION is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY K-500 OVERALL, corner_shape: SQUARE INSIDE RIGHT CORNER, flange_width: 0.2500 INCHES NOMINAL IN, overall_length: 3.5000 INCHES MINIMUM AND 3.5050 INCHES MAXIMUM IN, keyway_dimension: 0.2500 INCHES NOMINAL INTERNAL KEYWAY WIDTH IN, special_features: KEYWAY IN LEFT END OF BORE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-336-5386, 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
BS4-1444PC12
NSN: 3120-00-336-5386
FSC: 3120
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialNICKEL ALLOY K-500 OVERALL
corner_shapeSQUARE INSIDE RIGHT CORNER
flange_width0.2500 INCHES NOMINAL IN
overall_length3.5000 INCHES MINIMUM AND 3.5050 INCHES MAXIMUM IN
keyway_dimension0.2500 INCHES NOMINAL INTERNAL KEYWAY WIDTH IN
special_featuresKEYWAY IN LEFT END OF BORE
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter1.1250 INCHES MINIMUM AND 1.1265 INCHES MAXIMUM IN
body_outside_diameter1.3730 INCHES MINIMUM AND 1.3770 INCHES MAXIMUM IN
flange_outside_diameter1.6250 INCHES NOMINAL IN
NSN3120-00-336-5386
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: BS4-1444PC12 · 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
•
FLANGE WIDTH: 0.2500 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 1.1250 INCHES MINIMUM AND 1.1265 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 1.3730 INCHES MINIMUM AND 1.3770 INCHES MAXIMUM IN
•
FLANGE OUTSIDE DIAMETER: 1.6250 INCHES NOMINAL IN
•
MATERIAL: NICKEL ALLOY K-500 OVERALL
•
STYLE DESIGNATOR: SOLID, EXTERNAL FLANGE ONE END
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE WIDTH0.2500 INCHES NOMINAL IN
BODY INSIDE DIAMETER1.1250 INCHES MINIMUM AND 1.1265 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER1.3730 INCHES MINIMUM AND 1.3770 INCHES MAXIMUM IN
FLANGE OUTSIDE DIAMETER1.6250 INCHES NOMINAL IN
OVERALL LENGTH3.5000 INCHES MINIMUM AND 3.5050 INCHES MAXIMUM IN
MATERIALNICKEL ALLOY K-500 OVERALL
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
SPECIAL FEATURESKEYWAY IN LEFT END OF BORE
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE INSIDE LEFT CORNER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
10015867-005Interchangeable
interchangeable cross-reference
interchangeable
GT4847Interchangeable
interchangeable cross-reference
interchangeable
0AKInterchangeable
interchangeable cross-reference
interchangeable
D5Interchangeable
interchangeable cross-reference
interchangeable
NR50-872KInterchangeable
interchangeable cross-reference
interchangeable
MS260-50R0JInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BS4-1444PC12?
BS4-1444PC12 is a RESISTOR,FIXED,COMPOSITION.
What parts can replace BS4-1444PC12?
There are 27 known substitutes for BS4-1444PC12: 10015867-005, GT4847, 0AK and 24 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BS4-1444PC12?
BS4-1444PC12 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-336-5386. 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