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Technical Data Sheet
PartsTable / COMPONENT / 6061-257
6061-257 ✓ 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 BEARING,PIVOT is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: OD 0.250 IN.; ID 0.059 IN.; BRASS,QQ-S-626 IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-219-7187, 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
6061-257
NSN: 3120-00-219-7187
FSC: 3120
CAGE: 65263 — REALIST INC DAVID WHITE INSTRUMENT DIV (USA)
SPECIFICATIONS
general_characteristics_item_descriptionOD 0.250 IN.; ID 0.059 IN.; BRASS,QQ-S-626 IN
NSN3120-00-219-7187
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 6061-257 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: OD 0.250 IN.; ID 0.059 IN.; BRASS,QQ-S-626 IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONOD 0.250 IN.; ID 0.059 IN.; BRASS,QQ-S-626 IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
904291Interchangeable
interchangeable cross-reference
interchangeable
FF-W-92Interchangeable
interchangeable cross-reference
interchangeable
EE42417Interchangeable
interchangeable cross-reference
interchangeable
2552Interchangeable
interchangeable cross-reference
interchangeable
12Z12002-78Interchangeable
interchangeable cross-reference
interchangeable
AN931C3-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6061-257?
6061-257 is a BEARING,PIVOT.
What parts can replace 6061-257?
There are 20 known substitutes for 6061-257: 904291, FF-W-92, EE42417 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6061-257?
6061-257 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-219-7187. 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