PartsTable
Technical Data Sheet
PartsTable / COMPONENT / TFA504
TFA504 ✓ 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 material: STEEL COMP 630 OUTER RACE MEMBER, bore_diameter: 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, hardness_rating: 55.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM INNER MEMBER, style_designator: WITH INSERT AND/OR LINER, inner_member_width: 0.3410 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN, outer_member_width: 0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-528-5336, 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
TFA504
NSN: 3120-00-528-5336
FSC: 3120
CAGE: 77896 — REXNORD INDUSTRIES, LLC DIV AEROSSPACE BEARING OPERATION (USA)
SPECIFICATIONS
materialSTEEL COMP 630 OUTER RACE MEMBER
bore_diameter0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
hardness_rating55.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM INNER MEMBER
style_designatorWITH INSERT AND/OR LINER
inner_member_width0.3410 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN
outer_member_width0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN
static_radial_load_rating6040 POUNDS LBS
outer_member_outside_diameter0.6557 INCHES MINIMUM AND 0.6562 INCHES MAXIMUM IN
NSN3120-00-528-5336
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: TFA504 · 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
•
STYLE DESIGNATOR: WITH INSERT AND/OR LINER
•
MATERIAL: STEEL COMP 630 OUTER RACE MEMBER
•
HARDNESS RATING: 23.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER
•
INNER MEMBER WIDTH: 0.3410 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN
•
OUTER MEMBER OUTSIDE DIAMETER: 0.6557 INCHES MINIMUM AND 0.6562 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORWITH INSERT AND/OR LINER
MATERIALSTEEL COMP 630 OUTER RACE MEMBER
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE RACE LINER
MATERIALSTEEL COMP 440C INNER MEMBER
HARDNESS RATING23.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER
INNER MEMBER WIDTH0.3410 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN
HARDNESS RATING55.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM INNER MEMBER
OUTER MEMBER OUTSIDE DIAMETER0.6557 INCHES MINIMUM AND 0.6562 INCHES MAXIMUM IN
OUTER MEMBER WIDTH0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN
STATIC RADIAL LOAD RATING6040 POUNDS LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
HT4Interchangeable
interchangeable cross-reference
interchangeable
STABONDHT4Interchangeable
interchangeable cross-reference
interchangeable
NAS77Interchangeable
interchangeable cross-reference
interchangeable
AS14104Interchangeable
interchangeable cross-reference
interchangeable
NAS77-6-020Interchangeable
interchangeable cross-reference
interchangeable
KR10-CNGBInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy TFA504?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is TFA504?
TFA504 is a BEARING,PLAIN,SELF-ALIGNING.
What parts can replace TFA504?
There are 26 known substitutes for TFA504: HT4, STABONDHT4, NAS77 and 23 more. Substitute compatibility should be verified for your specific system.
Is TFA504 still available?
TFA504 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — TFA504

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026