PartsTable
Technical Data Sheet
Download PDF

312458-1129 — BEARING UNIT,PLAIN

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

312458-1129: BEARING UNIT,PLAIN.

The BEARING UNIT,PLAIN is a the manufacturer industrial component. Key specifications include special_features: REQUIRES TWO U BOLTS AND FOUR HEX NUTS FOR MOUNTING. This part is cataloged in the U.S.

Government catalog under NSN 3130-01-107-9974, 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
312458-1129
NSN: 3130-01-107-9974
FSC: 3130 — Bearings, Mounted
CAGE: 11440 — GE STEAM POWER INC DBA GE STEAM POWER, INC DIV GENERAL ELECTRIC (USA)
SPECIFICATIONS
special_featuresREQUIRES TWO U BOLTS AND FOUR HEX NUTS FOR MOUNTING
NSN3130-01-107-9974
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 312458-1129 · 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
SUBSTITUTES & CROSS-REFERENCES 5
3-31596 PIECE 48Reference document
Same NSN cross-reference
Reference document — Secondary reference
312458-2127Reference document
Same NSN cross-reference
Reference document — Secondary reference
3-31596 PIECE 10Reference document
Same NSN cross-reference
Reference document — Secondary reference
328444-1346 PIECE 10Reference document
Same NSN cross-reference
Reference document — Secondary reference
328445-1804 PIECE 10Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 312458-1129?
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 312458-1129?
312458-1129 is a BEARING UNIT,PLAIN.
What parts can replace 312458-1129?
There are 5 known substitutes for 312458-1129: 3-31596 PIECE 48, 312458-2127, 3-31596 PIECE 10 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 312458-1129?
312458-1129 is cataloged in the U.S. Government catalog under NSN 3130-01-107-9974. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 312458-1129

✓ 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.