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324558 — BEARING,WASHER,THRUST

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

324558: BEARING,WASHER,THRUST.

The BEARING,WASHER,THRUST is a the manufacturer industrial component. Key specifications include end_item_identification: CH-53K SIKORSKY HEAVY LIFT HELICOPTER, part_name_assigned_by_controlling_agency: MOUNTING BRACKET. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-986-5677, 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
324558
NSN: 3120-00-986-5677
NIINs: 009865677, 016677286
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: H0001 — DAF TRUCKS N.V. (NLD)
SPECIFICATIONS
end_item_identificationCH-53K SIKORSKY HEAVY LIFT HELICOPTER
part_name_assigned_by_controlling_agencyMOUNTING BRACKET
NSN3120-00-986-5677
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 324558 · 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
•
SURFACE FINISH: 32.0 MICROINCHES RIGHT SIDE
•
CORNER SHAPE: SQUARE ALL CORNERS
•
OVERALL THICKNESS: 0.1359 INCHES NOMINAL IN
•
HARDNESS RATING: 58.0 ROCKWELL C MINIMUM OVERALL
•
STYLE DESIGNATOR: ROUND
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES RIGHT SIDE
SURFACE FINISH32.0 MICROINCHES LEFT SIDE
CORNER SHAPESQUARE ALL CORNERS
OVERALL THICKNESS0.1359 INCHES NOMINAL IN
HARDNESS RATING58.0 ROCKWELL C MINIMUM OVERALL
STYLE DESIGNATORROUND
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER1.6100 INCHES MINIMUM AND 1.6200 INCHES MAXIMUM IN
FEATURES PROVIDEDCASEHARDENED
SUBSTITUTES & CROSS-REFERENCES 2
3120009865677Reference document
Same NSN cross-reference
Reference document — Secondary reference
T98-84AReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 324558?
324558 is a BEARING,WASHER,THRUST.
What parts can replace 324558?
There are 2 known substitutes for 324558: 3120009865677, T98-84A. Substitute compatibility should be verified for your specific system.
What is the NSN for 324558?
324558 is cataloged in the U.S. Government catalog under NSN 3120-00-986-5677. 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.