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140-31809-3 — BEARING UNIT,PLAIN

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

140-31809-3: BEARING UNIT,PLAIN.

The BEARING UNIT,PLAIN is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BEARING, bore_diameter: 0.1285 INCHES NOMINAL IN, alignment_type: RIGID, housing_height: 0.7560 INCHES NOMINAL IN, housing_length: 0.5200 INCHES MINIMUM AND 0.5520 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3130-00-185-5196, 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
140-31809-3
NSN: 3130-00-185-5196
FSC: 3130 — Bearings, Mounted
CAGE: 43999 — THE BOEING COMPANY DIV LEGACY AM&M (USA)
SPECIFICATIONS
materialCOPPER ALLOY BEARING
bore_diameter0.1285 INCHES NOMINAL IN
alignment_typeRIGID
housing_height0.7560 INCHES NOMINAL IN
housing_length0.5200 INCHES MINIMUM AND 0.5520 INCHES MAXIMUM IN
NSN3130-00-185-5196
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 140-31809-3 · 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
•
HOUSING HEIGHT: 0.7560 INCHES NOMINAL IN
•
ALIGNMENT TYPE: RIGID
•
BORE DIAMETER: 0.1285 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY BEARING
•
HOUSING LENGTH: 0.5200 INCHES MINIMUM AND 0.5520 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HOUSING HEIGHT0.7560 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
BORE DIAMETER0.1285 INCHES NOMINAL IN
MATERIALCOPPER ALLOY BEARING
MATERIALSTEEL COMP 302 HOUSING
HOUSING LENGTH0.5200 INCHES MINIMUM AND 0.5520 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 3130 — Bearings, Mounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3130-00-001-5118 3130-00-001-5137 3130-00-001-6585 3130-00-003-0422 3130-00-003-0455 3130-00-003-0794 3130-00-003-2802 3130-00-003-9535
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 140-31809-3?
140-31809-3 is a BEARING UNIT,PLAIN.
What is the NSN for 140-31809-3?
140-31809-3 is cataloged in the U.S. Government catalog under NSN 3130-00-185-5196. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
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.