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FAC8 — BEARING,PLAIN,SELF-ALIGNING

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

FAC8: BEARING,PLAIN,SELF-ALIGNING.

The BEARING,PLAIN,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include bore_diameter: 0.4995 INCHES MINIMUM AND 0.5005 INCHES MAXIMUM IN, inner_member_width: 0.6820 INCHES MINIMUM AND 0.6870 INCHES MAXIMUM IN, outer_member_width: 0.5260 INCHES MINIMUM AND 0.5310 INCHES MAXIMUM IN, outer_member_outside_diameter: 2.1600 INCHES MINIMUM AND 2.2200 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-331-7122, 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
FAC8
NSN: 3120-00-331-7122
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 73134 — ROLLER BEARING COMPANY OF AMERICA, INC. (USA)
SPECIFICATIONS
bore_diameter0.4995 INCHES MINIMUM AND 0.5005 INCHES MAXIMUM IN
inner_member_width0.6820 INCHES MINIMUM AND 0.6870 INCHES MAXIMUM IN
outer_member_width0.5260 INCHES MINIMUM AND 0.5310 INCHES MAXIMUM IN
outer_member_outside_diameter2.1600 INCHES MINIMUM AND 2.2200 INCHES MAXIMUM IN
NSN3120-00-331-7122
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: FAC8 · 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
•
INNER MEMBER WIDTH: 0.6820 INCHES MINIMUM AND 0.6870 INCHES MAXIMUM IN
•
OUTER MEMBER WIDTH: 0.5260 INCHES MINIMUM AND 0.5310 INCHES MAXIMUM IN
•
BORE DIAMETER: 0.4995 INCHES MINIMUM AND 0.5005 INCHES MAXIMUM IN
•
OUTER MEMBER OUTSIDE DIAMETER: 2.1600 INCHES MINIMUM AND 2.2200 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
INNER MEMBER WIDTH0.6820 INCHES MINIMUM AND 0.6870 INCHES MAXIMUM IN
OUTER MEMBER WIDTH0.5260 INCHES MINIMUM AND 0.5310 INCHES MAXIMUM IN
BORE DIAMETER0.4995 INCHES MINIMUM AND 0.5005 INCHES MAXIMUM IN
OUTER MEMBER OUTSIDE DIAMETER2.1600 INCHES MINIMUM AND 2.2200 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288 3120-00-001-1835 3120-00-001-1838 3120-00-001-1928 3120-00-001-1934 3120-00-001-3933 3120-00-001-3937 3120-00-001-3938
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is FAC8?
FAC8 is a BEARING,PLAIN,SELF-ALIGNING.
What is the NSN for FAC8?
FAC8 is cataloged in the U.S. Government catalog under NSN 3120-00-331-7122. This indicates validated use in U.S. government and defense supply chains.
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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.