CYRB278-1 — BEARING,BALL,ANNULAR

✓ Government record, cited

— · TAPERED BEARING

PRODUCT OVERVIEW

CYRB278-1: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL COMP 440C INNER RING, bore_shape: STRAIGHT, bore_diameter: 0.2500 INCHES NOMINAL IN, overall_width: 0.1960 INCHES NOMINAL IN, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-428-6505, 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

CYRB278-1

NSN: 3110-00-428-6505
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 05624 — GE AVIATION SYSTEMS LLC DBA GE AVIATION SYSTEMS LLC (USA)

SPECIFICATIONS

material	STEEL COMP 440C INNER RING
bore_shape	STRAIGHT
bore_diameter	0.2500 INCHES NOMINAL IN
overall_width	0.1960 INCHES NOMINAL IN
load_direction	RADIAL
surface_finish	GROUND
shield_quantity	2
special_features	LUBRICANT 1/2 FULL
style_designator	NON-LOADING GROOVE, NON-SEPARABLE
internal_clearance	0.0001 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN
lubrication_material	GREASE
overall_outside_diameter	0.6250 INCHES NOMINAL IN
NSN	3110-00-428-6505

COMPONENT DIAGRAM

KEY FEATURES

•

RETAINER FABRICATION METHOD: PRESSED

•

LUBRICATION MATERIAL: GREASE

•

INTERNAL CLEARANCE: 0.0001 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN

•

SURFACE FINISH: GROUND

•

SHIELD QUANTITY: 2

•

STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE

•

MATERIAL DOCUMENT AND CLASSIFICATION: FED-STD-66 FED STD SINGLE MATERIAL RESPONSE OUTER RING

TECHNICAL CHARACTERISTICS

RETAINER FABRICATION METHOD	PRESSED
LUBRICATION MATERIAL	GREASE
INTERNAL CLEARANCE	0.0001 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN
SURFACE FINISH	GROUND
SHIELD QUANTITY	2
STYLE DESIGNATOR	NON-LOADING GROOVE, NON-SEPARABLE
MATERIAL DOCUMENT AND CLASSIFICATION	FED-STD-66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
MATERIAL DOCUMENT AND CLASSIFICATION	FED-STD-66 FED STD SINGLE MATERIAL RESPONSE BALL
MATERIAL DOCUMENT AND CLASSIFICATION	FED-STD-66 FED STD SINGLE MATERIAL RESPONSE INNER RING
MATERIAL DOCUMENT AND CLASSIFICATION	CYRB278-1,05624 MFR REF SINGLE MATERIAL RESPONSE RETAINER

OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722

SUBSTITUTES & CROSS-REFERENCES 3

CYRB278-1-0-24Reference document

Same NSN cross-reference

Reference document — Secondary reference

R4FFMSTReference document

Same NSN cross-reference

Reference document — Secondary reference

SR41PPK15Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 CYRB278-1?

CYRB278-1 is a BEARING,BALL,ANNULAR.

What parts can replace CYRB278-1?

There are 3 known substitutes for CYRB278-1: CYRB278-1-0-24, R4FFMST, SR41PPK15. Substitute compatibility should be verified for your specific system.

What is the NSN for CYRB278-1?

CYRB278-1 is cataloged in the U.S. Government catalog under NSN 3110-00-428-6505. This indicates validated use in U.S. government and defense supply chains.

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CYRB278-1 — BEARING,BALL,ANNULAR

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