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PartsTable / COMPONENT / ATSB12-5D
ATSB12-5D ✓ 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,PLAIN,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include bore_diameter: 0.7495 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN, style_designator: WITH INSERT AND/OR LINER, inner_member_width: 0.9950 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN, outer_member_width: 0.7920 INCHES MINIMUM AND 0.8020 INCHES MAXIMUM IN, outer_member_outside_diameter: 1.7495 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM 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 3120-00-057-8310, 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
ATSB12-5D
NSN: 3120-00-057-8310
FSC: 3120
CAGE: 15860 — NEW HAMPSHIRE BALL BEARINGS INC DIV ASTRO DIVISION (USA)
SPECIFICATIONS
bore_diameter0.7495 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
style_designatorWITH INSERT AND/OR LINER
inner_member_width0.9950 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
outer_member_width0.7920 INCHES MINIMUM AND 0.8020 INCHES MAXIMUM IN
outer_member_outside_diameter1.7495 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN
NSN3120-00-057-8310
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: ATSB12-5D · 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
•
OUTER MEMBER OUTSIDE DIAMETER: 1.7495 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN
•
INNER MEMBER WIDTH: 0.9950 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
•
OUTER MEMBER WIDTH: 0.7920 INCHES MINIMUM AND 0.8020 INCHES MAXIMUM IN
•
BORE DIAMETER: 0.7495 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: WITH INSERT AND/OR LINER
TECHNICAL CHARACTERISTICS (FLIS)
OUTER MEMBER OUTSIDE DIAMETER1.7495 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN
INNER MEMBER WIDTH0.9950 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
OUTER MEMBER WIDTH0.7920 INCHES MINIMUM AND 0.8020 INCHES MAXIMUM IN
BORE DIAMETER0.7495 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
STYLE DESIGNATORWITH INSERT AND/OR LINER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
76541Interchangeable
interchangeable cross-reference
interchangeable
2723-1Interchangeable
interchangeable cross-reference
interchangeable
7518-1Interchangeable
interchangeable cross-reference
interchangeable
114HS681-1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ATSB12-5D?
ATSB12-5D is a BEARING,PLAIN,SELF-ALIGNING.
What parts can replace ATSB12-5D?
There are 4 known substitutes for ATSB12-5D: 76541, 2723-1, 7518-1 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ATSB12-5D?
ATSB12-5D is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-057-8310. 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