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D27554 — BRUSH,ELECTRICAL CONTACT

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

D27554: BRUSH,ELECTRICAL CONTACT.

The BRUSH,ELECTRICAL CONTACT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1045 OVERALL, corner_shape: SQUARE LEFT FLANGE BODY CORNER, flange_width: 0.2188 INCHES NOMINAL IN, overall_length: 1.5000 INCHES NOMINAL IN, style_designator: SOLID, EXTERNAL FLANGE ONE END, body_inside_diameter: 1.3780 INCHES MINIMUM AND 1.3790 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-430-9297, 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
D27554
NSN: 3120-00-430-9297
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 1045 OVERALL
corner_shapeSQUARE LEFT FLANGE BODY CORNER
flange_width0.2188 INCHES NOMINAL IN
overall_length1.5000 INCHES NOMINAL IN
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter1.3780 INCHES MINIMUM AND 1.3790 INCHES MAXIMUM IN
body_outside_diameter1.8700 INCHES MINIMUM AND 1.8720 INCHES MAXIMUM IN
flange_outside_diameter2.5000 INCHES NOMINAL IN
lubricant_accommodation_styleGROOVED CIRCULAR
surface_groove_location_and_quantity1 EXTERNAL
NSN3120-00-430-9297
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: D27554 · 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: SQUARE INSIDE RIGHT CORNER
•
FLANGE OUTSIDE DIAMETER: 2.5000 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 1.8700 INCHES MINIMUM AND 1.8720 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE LEFT FLANGE BODY CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE INSIDE LEFT CORNER
FLANGE OUTSIDE DIAMETER2.5000 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.8700 INCHES MINIMUM AND 1.8720 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
OVERALL LENGTH1.5000 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
27554Reference 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 D27554?
D27554 is a BRUSH,ELECTRICAL CONTACT.
What parts can replace D27554?
There is 1 known substitute for D27554: 27554. Substitute compatibility should be verified for your specific system.
What is the NSN for D27554?
D27554 is cataloged in the U.S. Government catalog under NSN 3120-00-430-9297. 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.