PartsTable
Technical Data Sheet
Download PDF

6338K437 — BEARING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

6338K437: BEARING,SLEEVE.

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, corner_shape: SQUARE ALL CORNERS, flange_width: 0.1250 INCHES NOMINAL IN, overall_length: 0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN, special_features: INTERIM ARMORED VEHICLE (IAV), CONTRACTOR LOGISTICS SUPPORT (CLS), style_designator: SOLID, EXTERNAL FLANGE ONE END. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-499-9971, 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
6338K437
NSN: 3120-01-499-9971
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 07BY4 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
flange_width0.1250 INCHES NOMINAL IN
overall_length0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
special_featuresINTERIM ARMORED VEHICLE (IAV), CONTRACTOR LOGISTICS SUPPORT (CLS)
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter0.5000 INCHES NOMINAL IN
body_outside_diameter1.2500 INCHES NOMINAL IN
flange_outside_diameter1.4950 INCHES MINIMUM AND 1.5050 INCHES MAXIMUM IN
material_document_and_classificationSAE 30 ASSN STD SINGLE MATERIAL RESPONSE LUBRICATION
NSN3120-01-499-9971
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 6338K437 · 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
•
FLANGE OUTSIDE DIAMETER: 1.4950 INCHES MINIMUM AND 1.5050 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 1.2500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SOLID, EXTERNAL FLANGE ONE END
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 30 ASSN STD SINGLE MATERIAL RESPONSE LUBRICATION
•
BODY INSIDE DIAMETER: 0.5000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
FLANGE OUTSIDE DIAMETER1.4950 INCHES MINIMUM AND 1.5050 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER1.2500 INCHES NOMINAL IN
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 30 ASSN STD SINGLE MATERIAL RESPONSE LUBRICATION
OVERALL LENGTH0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
BODY INSIDE DIAMETER0.5000 INCHES NOMINAL IN
SPECIAL FEATURESINTERIM ARMORED VEHICLE (IAV), CONTRACTOR LOGISTICS SUPPORT (CLS)
FLANGE WIDTH0.1250 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
OTHER ITEMS IN FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288 3120-00-001-1835 3120-00-001-1838 3120-00-001-1928 3120-00-001-1934 3120-00-001-3933 3120-00-001-3937 3120-00-001-3938
SUBSTITUTES & CROSS-REFERENCES 1
10656738-2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 6338K437?
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 6338K437?
6338K437 is a BEARING,SLEEVE.
What parts can replace 6338K437?
There is 1 known substitute for 6338K437: 10656738-2. Substitute compatibility should be verified for your specific system.
What is the NSN for 6338K437?
6338K437 is cataloged in the U.S. Government catalog under NSN 3120-01-499-9971. 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 — 6338K437

✓ 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.