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6777850 — HOUSING,BEARING UNIT

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

6777850: HOUSING,BEARING UNIT.

The HOUSING,BEARING UNIT is a the manufacturer industrial component. Key specifications include bore_diameter: 1.8950 INCHES NOMINAL IN, housing_length: 2.273 INCHES NOMINAL IN, flange_thickness: 0.108 INCHES NOMINAL IN, housing_diameter: 5.430 INCHES NOMINAL IN, style_designator: FLANGE BLOCK, bolt_circle_diameter: 4.860 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3130-00-045-3351, 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
6777850
NSN: 3130-00-045-3351
FSC: 3130 — Bearings, Mounted
CAGE: 6H244 — THE W.W. WILLIAMS COMPANY, LLC (USA)
SPECIFICATIONS
bore_diameter1.8950 INCHES NOMINAL IN
housing_length2.273 INCHES NOMINAL IN
flange_thickness0.108 INCHES NOMINAL IN
housing_diameter5.430 INCHES NOMINAL IN
style_designatorFLANGE BLOCK
bolt_circle_diameter4.860 INCHES NOMINAL IN
NSN3130-00-045-3351
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 6777850 · 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: 0.108 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLANGE BLOCK
•
BOLT CIRCLE DIAMETER: 4.860 INCHES NOMINAL IN
•
BORE DIAMETER: 1.8950 INCHES NOMINAL IN
•
HOUSING LENGTH: 2.273 INCHES NOMINAL IN
•
HOUSING DIAMETER: 5.430 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE THICKNESS0.108 INCHES NOMINAL IN
STYLE DESIGNATORFLANGE BLOCK
BOLT CIRCLE DIAMETER4.860 INCHES NOMINAL IN
BORE DIAMETER1.8950 INCHES NOMINAL IN
HOUSING LENGTH2.273 INCHES NOMINAL IN
HOUSING DIAMETER5.430 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
340020C1Reference document
Same NSN cross-reference
Reference document — Secondary reference
320113H1Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 6777850?
6777850 is a HOUSING,BEARING UNIT.
What parts can replace 6777850?
There are 2 known substitutes for 6777850: 340020C1, 320113H1. Substitute compatibility should be verified for your specific system.
What is the NSN for 6777850?
6777850 is cataloged in the U.S. Government catalog under NSN 3130-00-045-3351. 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.