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D56537PC1T06 — CIRCUIT CARD ASSEMBLY

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

D56537PC1T06: CIRCUIT CARD ASSEMBLY.

The CIRCUIT CARD ASSEMBLY is a the manufacturer industrial component. Key specifications include material: TIN ALLOY UNS L13890 INNER LAYER, corner_shape: SQUARE INSIDE RIGHT CORNER, overall_length: 4.0000 INCHES NOMINAL IN, surface_finish: 125.0 MICROINCHES LEFT END SURFACE OF BODY, style_designator: SEGMENTED, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 4.0060 INCHES MINIMUM AND 4.0070 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-072-6984, 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
D56537PC1T06
NSN: 3120-00-072-6984
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 16712 — SIEMENS ENERGY, INC. (USA)
SPECIFICATIONS
materialTIN ALLOY UNS L13890 INNER LAYER
corner_shapeSQUARE INSIDE RIGHT CORNER
overall_length4.0000 INCHES NOMINAL IN
surface_finish125.0 MICROINCHES LEFT END SURFACE OF BODY
style_designatorSEGMENTED, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter4.0060 INCHES MINIMUM AND 4.0070 INCHES MAXIMUM IN
body_outside_diameter5.9990 INCHES MINIMUM AND 6.0000 INCHES MAXIMUM IN
material_document_and_classificationQQ-T-390,GR 2 FED SPEC SINGLE MATERIAL RESPONSE INNER LAYER
antirotation/lubrication_type_and_quantity1 HOLE
NSN3120-00-072-6984
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: D56537PC1T06 · 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
•
SURFACE FINISH: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
•
CORNER SHAPE: SQUARE INSIDE RIGHT CORNER
•
BODY OUTSIDE DIAMETER: 5.9990 INCHES MINIMUM AND 6.0000 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SEGMENTED, PLAIN, NO OUTSIDE FLANGES
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH125.0 MICROINCHES RIGHT END SURFACE OF BODY
SURFACE FINISH32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH125.0 MICROINCHES LEFT END SURFACE OF BODY
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE INSIDE LEFT CORNER
BODY OUTSIDE DIAMETER5.9990 INCHES MINIMUM AND 6.0000 INCHES MAXIMUM IN
STYLE DESIGNATORSEGMENTED, PLAIN, NO OUTSIDE FLANGES
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-890,CL B MIL SPEC SINGLE MATERIAL RESPONSE OUTER LAYER
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-T-390,GR 2 FED SPEC SINGLE MATERIAL RESPONSE INNER LAYER
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is D56537PC1T06?
D56537PC1T06 is a CIRCUIT CARD ASSEMBLY.
What is the NSN for D56537PC1T06?
D56537PC1T06 is cataloged in the U.S. Government catalog under NSN 3120-00-072-6984. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
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.