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431435 PORT — BEARING UNIT,PLAIN

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

431435 PORT: BEARING UNIT,PLAIN.

The BEARING UNIT,PLAIN is a the manufacturer industrial component. Key specifications include end_item_identification: GEAR REDUCTION,MAIN PORT. This part is cataloged in the U.S.

Government catalog under NSN 3130-01-338-5088, 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
431435 PORT
NSN: 3130-01-338-5088
FSC: 3130 — Bearings, Mounted
CAGE: 21444 — REXNORD INDUSTRIES LLC (USA)
SPECIFICATIONS
end_item_identificationGEAR REDUCTION,MAIN PORT
NSN3130-01-338-5088
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 431435 PORT · 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
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONGEAR REDUCTION,MAIN PORT
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 2
118A101-1 PORTReference document
Same NSN cross-reference
Reference document — Secondary reference
2107093 ITEM 34 PORTSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 431435 PORT?
431435 PORT is a BEARING UNIT,PLAIN.
What parts can replace 431435 PORT?
There are 2 known substitutes for 431435 PORT: 118A101-1 PORT, 2107093 ITEM 34 PORT. Substitute compatibility should be verified for your specific system.
What is the NSN for 431435 PORT?
431435 PORT is cataloged in the U.S. Government catalog under NSN 3130-01-338-5088. 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.