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MIL-B-13506 — RELAY,ELECTROMAGNETIC

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

MIL-B-13506: RELAY,ELECTROMAGNETIC.

The RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1015 OUTER 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: 1.3740 INCHES MINIMUM AND 1.3750 INCHES MAXIMUM IN, body_outside_diameter: 1.5010 INCHES MINIMUM AND 1.5030 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-352-3545, 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
MIL-B-13506
NSN: 3120-00-352-3545
NIINs: 003523545, 005283816, 005609331, 007409746, 007538696, 007707789, 008068356
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 1015 OUTER LAYER
corner_shapeSQUARE ALL CORNERS
overall_length1.4800 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter1.3740 INCHES MINIMUM AND 1.3750 INCHES MAXIMUM IN
body_outside_diameter1.5010 INCHES MINIMUM AND 1.5030 INCHES MAXIMUM IN
nondefinitive_spec/std_dataA1 COMPOSITION OR A2 COMPOSITION OR A3 COMPOSITION OR A4 COMPOSITION
lubricant_accommodation_styleGROOVED DOUBLE LOOP
NSN3120-00-352-3545
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: MIL-B-13506 · 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
•
CORNER SHAPE: CHAMFERED INSIDE LEFT CORNER
•
DISTANCE FROM CENTERLINE OF OPENING TO LEFT END OF BEARING: 0.8750 INCHES NOMINAL FIRST IN
•
BODY OUTSIDE DIAMETER: 3.4375 INCHES NOMINAL IN
•
HOLE SPACING ANGLE: 30.0 DEGREES NOMINAL
•
STYLE DESIGNATOR: HALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
TECHNICAL CHARACTERISTICS
CORNER SHAPECHAMFERED INSIDE LEFT CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPECHAMFERED INSIDE RIGHT CORNER
DISTANCE FROM CENTERLINE OF OPENING TO LEFT END OF BEARING0.8750 INCHES NOMINAL FIRST IN
BODY OUTSIDE DIAMETER3.4375 INCHES NOMINAL IN
HOLE SPACING ANGLE30.0 DEGREES NOMINAL
STYLE DESIGNATORHALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
MATERIAL DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
OVERALL LENGTH1.7480 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
J506 FIG3BIMETALReference document
Same NSN cross-reference
Reference document — Design control — primary reference
J506 FIG 3Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MIL-B-13506?
MIL-B-13506 is a RELAY,ELECTROMAGNETIC.
What parts can replace MIL-B-13506?
There are 2 known substitutes for MIL-B-13506: J506 FIG3BIMETAL, J506 FIG 3. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-B-13506?
MIL-B-13506 is cataloged in the U.S. Government catalog under NSN 3120-00-352-3545. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.