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709-4684879ITEM6 — BEARING UNIT,PLAIN

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

709-4684879ITEM6: BEARING UNIT,PLAIN.

The BEARING UNIT,PLAIN is a the manufacturer industrial component. Key specifications include bore_diameter: 0.7500 INCHES NOMINAL IN, alignment_type: RIGID, housing_length: 1.0000 INCHES NOMINAL IN, shaft_end_type: OPEN, flange_thickness: 0.8800 INCHES NOMINAL IN, housing_diameter: 2.7500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3130-01-070-3047, 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
709-4684879ITEM6
NSN: 3130-01-070-3047
FSC: 3130 — Bearings, Mounted
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
bore_diameter0.7500 INCHES NOMINAL IN
alignment_typeRIGID
housing_length1.0000 INCHES NOMINAL IN
shaft_end_typeOPEN
flange_thickness0.8800 INCHES NOMINAL IN
housing_diameter2.7500 INCHES NOMINAL IN
special_features2 DOWEL HOLES 0.2500 IN. DIA CENTERED IN LINE WITH MOUNTING HOLES IN
mounting_hole_typeROUND, UNTHREADED
mounting_hole_diameter0.4760 INCHES NOMINAL IN
overall_outside_diameter4.3400 INCHES NOMINAL IN
material_document_and_classificationMIL-B-24480 FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN3130-01-070-3047
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 709-4684879ITEM6 · 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
•
FLANGE THICKNESS: 0.8800 INCHES NOMINAL IN
•
MOUNTING HOLE TYPE: ROUND, UNTHREADED
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-24480 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
MOUNTING HOLE DIAMETER: 0.4760 INCHES NOMINAL IN
•
OVERALL OUTSIDE DIAMETER: 4.3400 INCHES NOMINAL IN
•
ALIGNMENT TYPE: RIGID
•
SHAFT END TYPE: OPEN
TECHNICAL CHARACTERISTICS
FLANGE THICKNESS0.8800 INCHES NOMINAL IN
MOUNTING HOLE TYPEROUND, UNTHREADED
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-24480 FED SPEC ALL MATERIAL RESPONSES OVERALL
MOUNTING HOLE DIAMETER0.4760 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER4.3400 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
SHAFT END TYPEOPEN
SPECIAL FEATURES2 DOWEL HOLES 0.2500 IN. DIA CENTERED IN LINE WITH MOUNTING HOLES IN
BORE DIAMETER0.7500 INCHES NOMINAL IN
HOUSING LENGTH1.0000 INCHES NOMINAL IN
OTHER ITEMS IN FSC 3130 — Bearings, Mounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3130-00-001-5118 3130-00-001-5137 3130-00-001-6585 3130-00-003-0422 3130-00-003-0455 3130-00-003-0794 3130-00-003-2802 3130-00-003-9535
SUBSTITUTES & CROSS-REFERENCES 2
87832-1608ITEM6Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
87832-1608A ITEM 6Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 709-4684879ITEM6?
709-4684879ITEM6 is a BEARING UNIT,PLAIN.
What parts can replace 709-4684879ITEM6?
There are 2 known substitutes for 709-4684879ITEM6: 87832-1608ITEM6, 87832-1608A ITEM 6. Substitute compatibility should be verified for your specific system.
What is the NSN for 709-4684879ITEM6?
709-4684879ITEM6 is cataloged in the U.S. Government catalog under NSN 3130-01-070-3047. 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.