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7974920 — BEARING ASSEMBLY

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

7974920: BEARING ASSEMBLY.

The BEARING ASSEMBLY is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: 1.500 IN. OD,0.755 IN.

ID,3.500 IN. LG IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-353-0913, 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
7974920
NSN: 3120-00-353-0913
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
general_characteristics_item_description1.500 IN. OD,0.755 IN. ID,3.500 IN. LG IN
NSN3120-00-353-0913
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 7974920 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: 1.500 IN. OD,0.755 IN. ID,3.500 IN. LG IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTION1.500 IN. OD,0.755 IN. ID,3.500 IN. LG IN
SUBSTITUTES & CROSS-REFERENCES 1
56522Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· 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 7974920?
7974920 is a BEARING ASSEMBLY.
What parts can replace 7974920?
There is 1 known substitute for 7974920: 56522. Substitute compatibility should be verified for your specific system.
What is the NSN for 7974920?
7974920 is cataloged in the U.S. Government catalog under NSN 3120-00-353-0913. 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.