PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 25-2166
25-2166 ✓ 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 BRUSH,ELECTRICAL CONTACT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, corner_shape: SQUARE ALL CORNERS, flange_width: 0.0600 INCHES NOMINAL IN, overall_length: 0.6050 INCHES NOMINAL IN, style_designator: SOLID, EXTERNAL FLANGE ONE END, surface_treatment: ANODIZE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-485-8037, 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
25-2166
NSN: 3120-01-485-8037
FSC: 3120
CAGE: 07070 — UNITED STATES DEPARTMENT OF THE NAVY DBA NAVAL SURFACE WARFARE CENTER PANAMA CITY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
corner_shapeSQUARE ALL CORNERS
flange_width0.0600 INCHES NOMINAL IN
overall_length0.6050 INCHES NOMINAL IN
style_designatorSOLID, EXTERNAL FLANGE ONE END
surface_treatmentANODIZE OVERALL
body_inside_diameter0.3590 INCHES MINIMUM AND 0.3660 INCHES MAXIMUM IN
body_outside_diameter0.5006 INCHES MINIMUM AND 0.5013 INCHES MAXIMUM IN
end_item_identificationMRAP - COUGAR
flange_outside_diameter0.6350 INCHES NOMINAL IN
surface_treatment_document_and_classificationMIL-A-8625, TYPE III, CLASS 1 MIL SPEC 3RD TREATMENT RESPONSE OVERALL
NSN3120-01-485-8037
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 25-2166 · 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
•
FLANGE OUTSIDE DIAMETER: 0.6350 INCHES NOMINAL IN
•
SURFACE TREATMENT: ANODIZE OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625, TYPE III, CLASS 1 MIL SPEC 3RD TREATMENT RESPONSE OVERALL
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
BODY INSIDE DIAMETER: 0.3590 INCHES MINIMUM AND 0.3660 INCHES MAXIMUM IN
•
FLANGE WIDTH: 0.0600 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE OUTSIDE DIAMETER0.6350 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625, TYPE III, CLASS 1 MIL SPEC 3RD TREATMENT RESPONSE OVERALL
OVERALL LENGTH0.6050 INCHES NOMINAL IN
END ITEM IDENTIFICATIONAEGIS WPN SYS; MRAP - COUGAR
MATERIALSTEEL CORROSION RESISTING OVERALL
BODY INSIDE DIAMETER0.3590 INCHES MINIMUM AND 0.3660 INCHES MAXIMUM IN
FLANGE WIDTH0.0600 INCHES NOMINAL IN
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
BODY OUTSIDE DIAMETER0.5006 INCHES MINIMUM AND 0.5013 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
25216Interchangeable
interchangeable cross-reference
interchangeable
AA7G238Interchangeable
interchangeable cross-reference
interchangeable
989023800DA106Interchangeable
interchangeable cross-reference
interchangeable
853333Interchangeable
interchangeable cross-reference
interchangeable
857366Interchangeable
interchangeable cross-reference
interchangeable
AS954Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 25-2166?
25-2166 is a BRUSH,ELECTRICAL CONTACT.
What parts can replace 25-2166?
There are 10 known substitutes for 25-2166: 25216, AA7G238, 989023800DA106 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 25-2166?
25-2166 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-485-8037. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026