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Technical Data Sheet
PartsTable / COMPONENT / 72R540
72R540 ✓ 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 TRANSFORMER,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY INNER LAYER, corner_shape: SQUARE ALL CORNERS, overall_length: 1.4800 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 1.7485 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN, body_outside_diameter: 1.8760 INCHES MINIMUM AND 1.8780 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-350-2603, 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
72R540
NSN: 3120-00-350-2603
FSC: 3120
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY INNER LAYER
corner_shapeSQUARE ALL CORNERS
overall_length1.4800 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter1.7485 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN
body_outside_diameter1.8760 INCHES MINIMUM AND 1.8780 INCHES MAXIMUM IN
NSN3120-00-350-2603
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 72R540 · 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: STEEL OUTER LAYER
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY INSIDE DIAMETER: 1.7485 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 1.8760 INCHES MINIMUM AND 1.8780 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OUTER LAYER
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
CORNER SHAPESQUARE ALL CORNERS
MATERIALCOPPER ALLOY INNER LAYER
BODY INSIDE DIAMETER1.7485 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN
OVERALL LENGTH1.4800 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER1.8760 INCHES MINIMUM AND 1.8780 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
2510-18Interchangeable
interchangeable cross-reference
interchangeable
666162-418Interchangeable
interchangeable cross-reference
interchangeable
605674Interchangeable
interchangeable cross-reference
interchangeable
2510 1/8Interchangeable
interchangeable cross-reference
interchangeable
C08665Interchangeable
interchangeable cross-reference
interchangeable
10558Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 72R540?
72R540 is a TRANSFORMER,RADIO FREQUENCY.
What parts can replace 72R540?
There are 22 known substitutes for 72R540: 2510-18, 666162-418, 605674 and 19 more. Substitute compatibility should be verified for your specific system.
Is 72R540 still available?
72R540 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