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4660405 — ARMOR,SUPPLEMENTAL,SMALL ARMS-FR

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

4660405: ARMOR,SUPPLEMENTAL,SMALL ARMS-FR.

ARMOR,SUPPLEMENTAL,SMALL ARMS-FR. Key specifications include special_features: WEAPON SYSTEM ESSENTIAL, end_item_identification: 2320-01-413-3739TRUCK, VEHICLE SYSTEM, 1 1/4 TON (HMMWV), criticality_code_justification: FEAT. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-362-6921, 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
4660405
NSN: 3120-00-362-6921
NIINs: 003626921, 014350466
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 6N299 — AGCO CORP PARTS OPN (USA)
SPECIFICATIONS
special_featuresWEAPON SYSTEM ESSENTIAL
end_item_identification2320-01-413-3739TRUCK, VEHICLE SYSTEM, 1 1/4 TON (HMMWV)
criticality_code_justificationFEAT
NSN3120-00-362-6921
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 4660405 · 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
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY OUTSIDE DIAMETER: 0.8755 INCHES MINIMUM AND 0.8765 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
BODY INSIDE DIAMETER: 0.7350 INCHES MINIMUM AND 0.7400 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY 937 OVERALL
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER0.8755 INCHES MINIMUM AND 0.8765 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH1.2500 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.7350 INCHES MINIMUM AND 0.7400 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY 937 OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
M60405Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4660405?
4660405 is a ARMOR,SUPPLEMENTAL,SMALL ARMS-FR.
What parts can replace 4660405?
There is 1 known substitute for 4660405: M60405. Substitute compatibility should be verified for your specific system.
What is the NSN for 4660405?
4660405 is cataloged in the U.S. Government catalog under NSN 3120-00-362-6921. 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.