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Technical Data Sheet
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M114B55 — Technical Data Sheet

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— · 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,NONWIRE WOUND,. Key specifications include material: LEAD ALLOY INNER LAYER, corner_shape: SQUARE ALL CORNERS, overall_length: 0.9900 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 1.6275 INCHES MAXIMUM IN, body_outside_diameter: 1.7500 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System under NSN 3120-00-288-4811, 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
M114B55
NSN: 3120-00-288-4811
FSC: 3120
CAGE: 91340 — MET-PRO CORPORATION (USA)
SPECIFICATIONS
materialLEAD ALLOY INNER LAYER
corner_shapeSQUARE ALL CORNERS
overall_length0.9900 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter1.6275 INCHES MAXIMUM IN
body_outside_diameter1.7500 INCHES MAXIMUM IN
NSN3120-00-288-4811
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: M114B55 · 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
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
MATERIAL: STEEL OUTER LAYER
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY OUTSIDE DIAMETER: 1.7500 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 1.6275 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL LENGTH0.9900 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIALSTEEL OUTER LAYER
CORNER SHAPESQUARE ALL CORNERS
MATERIALLEAD ALLOY INNER LAYER
BODY OUTSIDE DIAMETER1.7500 INCHES MAXIMUM IN
BODY INSIDE DIAMETER1.6275 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
12049InterchangeableGOVERNMENT REGISTRY
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6150PL1359945InterchangeableGOVERNMENT REGISTRY
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17422InterchangeableGOVERNMENT REGISTRY
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917-LH 5/16InterchangeableGOVERNMENT REGISTRY
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interchangeable
5436-020InterchangeableGOVERNMENT REGISTRY
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670-7InterchangeableGOVERNMENT REGISTRY
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LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M114B55?
M114B55 is a RESISTOR,VARIABLE,NONWIRE WOUND,.
What parts can replace M114B55?
There are 29 known substitutes for M114B55: 12049, 6150PL1359945, 17422 and 26 more. Substitute compatibility should be verified for your specific system.
Is M114B55 still available?
M114B55 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: September 2026