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74A731061-2001 — HOUSING,BEARING UNIT

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

74A731061-2001: HOUSING,BEARING UNIT.

The HOUSING,BEARING UNIT is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 7075 OVERALL, bore_diameter: 1.3800 INCHES NOMINAL IN, housing_length: 0.761 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN, flange_thickness: 0.125 INCHES NOMINAL IN, housing_diameter: 1.875 INCHES NOMINAL IN, style_designator: FLANGE BLOCK. This part is cataloged in the U.S.

Government catalog under NSN 3130-01-258-4744, 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
74A731061-2001
NSN: 3130-01-258-4744
FSC: 3130 — Bearings, Mounted
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075 OVERALL
bore_diameter1.3800 INCHES NOMINAL IN
housing_length0.761 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
flange_thickness0.125 INCHES NOMINAL IN
housing_diameter1.875 INCHES NOMINAL IN
style_designatorFLANGE BLOCK
surface_treatmentANODIZE BORE
mounting_hole_typeSLOTTED
mounting_slot_width0.320 INCHES NOMINAL IN
bolt_circle_diameter3.000 INCHES NOMINAL IN
mounting_slot_length0.440 INCHES NOMINAL IN
assembly_overall_length0.9690 INCHES NOMINAL IN
NSN3130-01-258-4744
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 74A731061-2001 · 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
•
ASSEMBLY OVERALL LENGTH: 0.9690 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: PS 13201 TYPE 2,CLASS 1,CAGE 76301 MFR REF SINGLE TREATMENT RESPONSE BORE
•
MOUNTING SLOT LENGTH: 0.440 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.125 INCHES NOMINAL IN
•
MOUNTING HOLE TYPE: SLOTTED
•
STYLE DESIGNATOR: FLANGE BLOCK
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/9,COND T7351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
ASSEMBLY OVERALL LENGTH0.9690 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONPS 13201 TYPE 2,CLASS 1,CAGE 76301 MFR REF SINGLE TREATMENT RESPONSE BORE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONPS 13630,CAGE 76301 MFR REF SINGLE TREATMENT RESPONSE HOUSING EXCLUDING BORE
MOUNTING SLOT LENGTH0.440 INCHES NOMINAL IN
FLANGE THICKNESS0.125 INCHES NOMINAL IN
MOUNTING HOLE TYPESLOTTED
STYLE DESIGNATORFLANGE BLOCK
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/9,COND T7351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
BOLT CIRCLE DIAMETER3.000 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE BORE
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 1
10110469Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 74A731061-2001?
74A731061-2001 is a HOUSING,BEARING UNIT.
What parts can replace 74A731061-2001?
There is 1 known substitute for 74A731061-2001: 10110469. Substitute compatibility should be verified for your specific system.
What is the NSN for 74A731061-2001?
74A731061-2001 is cataloged in the U.S. Government catalog under NSN 3130-01-258-4744. This indicates validated use in U.S. government and defense supply chains.
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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.