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M305893 — HOUSING,BEARING UNIT

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

M305893: HOUSING,BEARING UNIT.

The HOUSING,BEARING UNIT is a the manufacturer industrial component. Key specifications include bore_diameter: 2.7360 INCHES MINIMUM AND 2.7420 INCHES MAXIMUM IN, housing_width: 4.7500 INCHES NOMINAL IN, shaft_end_type: OPEN, height_from_bottom_of_base_to_bore_centerline: 3.0000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3130-00-692-6129, 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
M305893
NSN: 3130-00-692-6129
FSC: 3130 — Bearings, Mounted
CAGE: 22852 — SPALLA INC (USA)
SPECIFICATIONS
bore_diameter2.7360 INCHES MINIMUM AND 2.7420 INCHES MAXIMUM IN
housing_width4.7500 INCHES NOMINAL IN
shaft_end_typeOPEN
height_from_bottom_of_base_to_bore_centerline3.0000 INCHES NOMINAL IN
NSN3130-00-692-6129
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: M305893 · 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
•
HOUSING WIDTH: 4.7500 INCHES NOMINAL IN
•
SHAFT END TYPE: OPEN
•
BORE DIAMETER: 2.7360 INCHES MINIMUM AND 2.7420 INCHES MAXIMUM IN
•
HEIGHT FROM BOTTOM OF BASE TO BORE CENTERLINE: 3.0000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HOUSING WIDTH4.7500 INCHES NOMINAL IN
SHAFT END TYPEOPEN
BORE DIAMETER2.7360 INCHES MINIMUM AND 2.7420 INCHES MAXIMUM IN
HEIGHT FROM BOTTOM OF BASE TO BORE CENTERLINE3.0000 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

No substitute or cross-reference records for this part.

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 M305893?
M305893 is a HOUSING,BEARING UNIT.
What is the NSN for M305893?
M305893 is cataloged in the U.S. Government catalog under NSN 3130-00-692-6129. 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.