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751680-1-1 — HOUSING,BEARING UNIT

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

751680-1-1: HOUSING,BEARING UNIT.

The HOUSING,BEARING UNIT is a the manufacturer industrial component. Key specifications include bore_diameter: 1.8508 INCHES MINIMUM AND 1.8511 INCHES MAXIMUM IN, housing_width: 2.4100 INCHES NOMINAL IN, housing_length: 2.1650 INCHES NOMINAL IN, shaft_end_type: OPEN, flange_thickness: 0.0600 INCHES MINIMUM AND 0.0700 INCHES MAXIMUM IN, bolt_circle_diameter: 2.5840 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3130-01-208-3899, 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
751680-1-1
NSN: 3130-01-208-3899
FSC: 3130 — Bearings, Mounted
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
bore_diameter1.8508 INCHES MINIMUM AND 1.8511 INCHES MAXIMUM IN
housing_width2.4100 INCHES NOMINAL IN
housing_length2.1650 INCHES NOMINAL IN
shaft_end_typeOPEN
flange_thickness0.0600 INCHES MINIMUM AND 0.0700 INCHES MAXIMUM IN
bolt_circle_diameter2.5840 INCHES NOMINAL IN
mounting_hole_diameter0.2170 INCHES MINIMUM AND 0.2240 INCHES MAXIMUM IN
NSN3130-01-208-3899
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 751680-1-1 · 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: 0.0600 INCHES MINIMUM AND 0.0700 INCHES MAXIMUM IN
•
MOUNTING HOLE DIAMETER: 0.2170 INCHES MINIMUM AND 0.2240 INCHES MAXIMUM IN
•
HOUSING WIDTH: 2.4100 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 2.5840 INCHES NOMINAL IN
•
SHAFT END TYPE: OPEN
•
BORE DIAMETER: 1.8508 INCHES MINIMUM AND 1.8511 INCHES MAXIMUM IN
•
HOUSING LENGTH: 2.1650 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE THICKNESS0.0600 INCHES MINIMUM AND 0.0700 INCHES MAXIMUM IN
MOUNTING HOLE DIAMETER0.2170 INCHES MINIMUM AND 0.2240 INCHES MAXIMUM IN
HOUSING WIDTH2.4100 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER2.5840 INCHES NOMINAL IN
SHAFT END TYPEOPEN
SPECIAL FEATURESSPACER,SLEEVE,PART 751680-20,0.330 IN. LONG,1.686 ID INSERTED IN BORE OF HOUSING 0.912 IN. FROM DLANGED END CORNER,HELD IN PLACE BY PIN,STRAIGHT,HEADLESS,PART 69522-6C6 IN THREE EQUALLY SPACED PLACES; TWO 0.1005 IN. DIA HOLES THROUGH BODY ON EACH SIDE OF ONE DOWEL PIN HOLE IN
BORE DIAMETER1.8508 INCHES MINIMUM AND 1.8511 INCHES MAXIMUM IN
HOUSING LENGTH2.1650 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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 751680-1-1?
751680-1-1 is a HOUSING,BEARING UNIT.
What is the NSN for 751680-1-1?
751680-1-1 is cataloged in the U.S. Government catalog under NSN 3130-01-208-3899. 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.