X394 — CUP,TAPERED ROLLER BEARING

✓ Government record, cited

— · TAPERED BEARING

PRODUCT OVERVIEW

X394: CUP,TAPERED ROLLER BEARING.

The CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include height: 1.141 INCHES NOMINAL IN, material: COPPER ALLOY OVERALL, thread_class: 2A A, overall_width: 0.5938 INCHES NOMINAL IN, outside_diameter: 2.3125 INCHES NOMINAL IN, style_designator: STRAIGHT, ROTATING SLEEVE, SELF CLOSING. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-0352, 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

X394

NSN: 3110-00-100-0352
NIINs: 001000352, 003623300
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 29510 — KOMATSU AMERICAN INTL CO (USA)

SPECIFICATIONS

height	1.141 INCHES NOMINAL IN
material	COPPER ALLOY OVERALL
thread_class	2A A
overall_width	0.5938 INCHES NOMINAL IN
outside_diameter	2.3125 INCHES NOMINAL IN
style_designator	STRAIGHT, ROTATING SLEEVE, SELF CLOSING
nominal_thread_size	0.500 INCHES IN
backface_corner_radius	0.0469 INCHES NOMINAL IN
assembly_clearance_radius	0.312 INCHES NOMINAL IN
screw_thread_series_designator	UNF
standard_tolerance_designation	AFBMA CLASS 2
NSN	3110-00-100-0352

COMPONENT DIAGRAM

KEY FEATURES

•

STYLE DESIGNATOR: NORMAL ANGLE

•

OUTSIDE DIAMETER: 2.3125 INCHES NOMINAL IN

•

BACKFACE CORNER RADIUS: 0.0469 INCHES NOMINAL IN

•

STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2

•

MATERIAL: STEEL OVERALL

TYPICAL APPLICATIONS

Long-term data archival and compliance retention
Offsite backup and disaster recovery
Air-gapped ransomware protection
Cold storage tier for infrequently accessed data

TECHNICAL CHARACTERISTICS

STYLE DESIGNATOR	NORMAL ANGLE
OVERALL WIDTH	0.5938 INCHES NOMINAL IN
OUTSIDE DIAMETER	2.3125 INCHES NOMINAL IN
BACKFACE CORNER RADIUS	0.0469 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATION	AFBMA CLASS 2
MATERIAL	STEEL OVERALL

SUBSTITUTES & CROSS-REFERENCES 9

051227Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

1932Reference document

IBM 4GB (2 x 2GB) PC2-4200 DDR2 Memory Kit

Reference document — Secondary reference

5035AReference document

Same NSN cross-reference

Reference document — Secondary reference

89055Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

706735Reference document

Same NSN cross-reference

Reference document — Secondary reference

108004Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is X394?

X394 is a CUP,TAPERED ROLLER BEARING.

What parts can replace X394?

There are 9 known substitutes for X394: 051227, 1932, 5035A and 6 more. Substitute compatibility should be verified for your specific system.

What is the NSN for X394?

X394 is cataloged in the U.S. Government catalog under NSN 3110-00-100-0352. This indicates validated use in U.S. government and defense supply chains.

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X394 — CUP,TAPERED ROLLER BEARING

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