770329 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited

— · TAPERED BEARING

PRODUCT OVERVIEW

770329: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL OUTER RING, bore_shape: STRAIGHT, bore_diameter: 1.4948 INCHES MINIMUM AND 1.4950 INCHES MAXIMUM IN, overall_width: 0.9510 INCHES MINIMUM AND 0.9530 INCHES MAXIMUM IN, surface_finish: GROUND, locating_feature: NONLOCATING. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-009-9825, 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

770329

NSN: 3110-01-009-9825
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)

SPECIFICATIONS

material	STEEL OUTER RING
bore_shape	STRAIGHT
bore_diameter	1.4948 INCHES MINIMUM AND 1.4950 INCHES MAXIMUM IN
overall_width	0.9510 INCHES MINIMUM AND 0.9530 INCHES MAXIMUM IN
surface_finish	GROUND
locating_feature	NONLOCATING
internal_clearance	0.0016 INCHES MINIMUM RADIAL AND 0.0024 INCHES MAXIMUM RADIAL IN
overall_outside_diameter	3.3997 INCHES MINIMUM AND 3.4000 INCHES MAXIMUM IN
retainer_fabrication_method	MACHINED
standard_tolerance_designation	RBEC NO.5
material_document_and_classification	PWA 723,FSCM 77445 MFR REF SINGLE MATERIAL RESPONSE OUTER RING
NSN	3110-01-009-9825

COMPONENT DIAGRAM

KEY FEATURES

•

RETAINER FABRICATION METHOD: MACHINED

•

INTERNAL CLEARANCE: 0.0016 INCHES MINIMUM RADIAL AND 0.0024 INCHES MAXIMUM RADIAL IN

•

LOCATING FEATURE: NONLOCATING

•

SURFACE FINISH: GROUND

•

MATERIAL DOCUMENT AND CLASSIFICATION: PWA 723,FSCM 77445 MFR REF SINGLE MATERIAL RESPONSE INNER RING

TECHNICAL CHARACTERISTICS

RETAINER FABRICATION METHOD	MACHINED
INTERNAL CLEARANCE	0.0016 INCHES MINIMUM RADIAL AND 0.0024 INCHES MAXIMUM RADIAL IN
LOCATING FEATURE	NONLOCATING
SURFACE FINISH	GROUND
MATERIAL DOCUMENT AND CLASSIFICATION	PWA 723,FSCM 77445 MFR REF SINGLE MATERIAL RESPONSE INNER RING
MATERIAL DOCUMENT AND CLASSIFICATION	PWA 723,FSCM 77445 MFR REF SINGLE MATERIAL RESPONSE OUTER RING
MATERIAL DOCUMENT AND CLASSIFICATION	PWA 723,FSCM 77445 MFR REF SINGLE MATERIAL RESPONSE ROLLER
MATERIAL DOCUMENT AND CLASSIFICATION	PWA-S-6415,FSCM 77445 MFR REF SINGLE MATERIAL RESPONSE RETAINER
OVERALL WIDTH	0.9510 INCHES MINIMUM AND 0.9530 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER	3.3997 INCHES MINIMUM AND 3.4000 INCHES MAXIMUM IN

SUBSTITUTES & CROSS-REFERENCES 2

741416Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

741415Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedDemilitarization required — critical (Q)

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FREQUENTLY ASKED QUESTIONS

What is 770329?

770329 is a BEARING,ROLLER,CYLINDRICAL.

What parts can replace 770329?

There are 2 known substitutes for 770329: 741416, 741415. Substitute compatibility should be verified for your specific system.

What is the NSN for 770329?

770329 is cataloged in the U.S. Government catalog under NSN 3110-01-009-9825. This indicates validated use in U.S. government and defense supply chains.

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770329 — BEARING,ROLLER,CYLINDRICAL

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