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Technical Data Sheet
PartsTable / COMPONENT / RM9A53
RM9A53 ✓ 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 DUMMY LOAD,ELECTRICAL is a the manufacturer industrial component. Key specifications include material: LUBRICANT LUBRICATION, corner_shape: SQUARE ALL CORNERS, overall_length: 1.4950 INCHES MINIMUM AND 1.5050 INCHES MAXIMUM IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 1.2565 INCHES MINIMUM AND 1.2580 INCHES MAXIMUM IN, body_outside_diameter: 1.5030 INCHES MINIMUM AND 1.5040 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-447-3939, 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
RM9A53
NSN: 3120-00-447-3939
FSC: 3120
CAGE: 27996 — HEIL ENVIRONMENTAL INDUSTRIES (USA)
SPECIFICATIONS
materialLUBRICANT LUBRICATION
corner_shapeSQUARE ALL CORNERS
overall_length1.4950 INCHES MINIMUM AND 1.5050 INCHES MAXIMUM IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter1.2565 INCHES MINIMUM AND 1.2580 INCHES MAXIMUM IN
body_outside_diameter1.5030 INCHES MINIMUM AND 1.5040 INCHES MAXIMUM IN
NSN3120-00-447-3939
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: RM9A53 · 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
•
MATERIAL: LUBRICANT LUBRICATION
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY INSIDE DIAMETER: 1.2565 INCHES MINIMUM AND 1.2580 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 1.5030 INCHES MINIMUM AND 1.5040 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALLUBRICANT LUBRICATION
MATERIALCOPPER ALLOY OVERALL
CORNER SHAPESQUARE ALL CORNERS
OVERALL LENGTH1.4950 INCHES MINIMUM AND 1.5050 INCHES MAXIMUM IN
BODY INSIDE DIAMETER1.2565 INCHES MINIMUM AND 1.2580 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER1.5030 INCHES MINIMUM AND 1.5040 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
150-51Interchangeable
interchangeable cross-reference
interchangeable
M150-TP51Interchangeable
interchangeable cross-reference
interchangeable
320118-1Interchangeable
interchangeable cross-reference
interchangeable
558-1505-01-00-00Interchangeable
interchangeable cross-reference
interchangeable
GGG-D-751 TYCSZ51Interchangeable
interchangeable cross-reference
interchangeable
44121Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RM9A53?
RM9A53 is a DUMMY LOAD,ELECTRICAL.
What parts can replace RM9A53?
There are 18 known substitutes for RM9A53: 150-51, M150-TP51, 320118-1 and 15 more. Substitute compatibility should be verified for your specific system.
Is RM9A53 still available?
RM9A53 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