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Technical Data Sheet
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18-4637 — Technical Data Sheet

✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BEARING,WASHER,THRUST is a the manufacturer industrial component. Key specifications include end_item_identification: ENGINE MODEL F404-GE-400. This part is cataloged in the Federal Logistics Information System under NSN 3120-00-499-9034, 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
18-4637
NSN: 3120-00-499-9034
FSC: 3120
CAGE: 23040 — FORD MOTOR CO FORD PARTS AND SERVICE DIV GOVERNMENT PART SALES (USA)
SPECIFICATIONS
end_item_identificationENGINE MODEL F404-GE-400
NSN3120-00-499-9034
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 18-4637 · 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
•
OUTSIDE DIAMETER: 2.0000 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
FEATURES PROVIDED: CASEHARDENED
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
STYLE DESIGNATOR: ROUND
•
CORNER SHAPE: SQUARE ALL CORNERS
•
MATERIAL: STEEL COMP 1010 OVERALL
•
DIAMETER: 1.3150 INCHES MINIMUM AND 1.3200 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER2.0000 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
FEATURES PROVIDEDCASEHARDENED
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
STYLE DESIGNATORROUND
CORNER SHAPESQUARE ALL CORNERS
MATERIALSTEEL COMP 1010 OVERALL
DIAMETER1.3150 INCHES MINIMUM AND 1.3200 INCHES MAXIMUM IN
CENTER HOLE KEY LENGTH0.0600 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND W/KEY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
4637InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
A-A-52160/2B58InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
A-A-52160InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B58-2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
26821InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
10158986InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 18-4637?
18-4637 is a BEARING,WASHER,THRUST.
What parts can replace 18-4637?
There are 17 known substitutes for 18-4637: 4637, A-A-52160/2B58, A-A-52160 and 14 more. Substitute compatibility should be verified for your specific system.
Is 18-4637 still available?
18-4637 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026