120557 — CUP,TAPERED ROLLER BEARING

✓ Government record, cited

— · TAPERED BEARING

PRODUCT OVERVIEW

120557: 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 material: STEEL OVERALL, peripheral_diameter: 21.8 MILLIMETERS NOMINAL MM, center_hole_diameter: 16.0 MILLIMETERS NOMINAL MM, cross-sectional_height: 1.5 MILLIMETERS NOMINAL MM, cross-sectional_shape_style: SQUARE/RECTANGULAR, part_name_assigned_by_controlling_agency: SEALING RING. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-0615, 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

120557

NSN: 3110-00-100-0615
NIINs: 001000615, 007799545, 008258029, 015808152
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 30379 — EUCLID INC (USA)

SPECIFICATIONS

material	STEEL OVERALL
peripheral_diameter	21.8 MILLIMETERS NOMINAL MM
center_hole_diameter	16.0 MILLIMETERS NOMINAL MM
cross-sectional_height	1.5 MILLIMETERS NOMINAL MM
cross-sectional_shape_style	SQUARE/RECTANGULAR
part_name_assigned_by_controlling_agency	SEALING RING
NSN	3110-00-100-0615

COMPONENT DIAGRAM

KEY FEATURES

•

STYLE DESIGNATOR: NORMAL ANGLE

•

OUTSIDE DIAMETER: 4.8750 INCHES NOMINAL IN

•

BACKFACE CORNER RADIUS: 0.1250 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	1.0000 INCHES NOMINAL IN
OUTSIDE DIAMETER	4.8750 INCHES NOMINAL IN
BACKFACE CORNER RADIUS	0.1250 INCHES NOMINAL IN
SPECIAL FEATURES	STEEP ANGLE
END ITEM IDENTIFICATION	HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
STANDARD TOLERANCE DESIGNATION	AFBMA CLASS 2
MATERIAL	STEEL OVERALL

SUBSTITUTES & CROSS-REFERENCES 9

9-049-100895Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

72487Reference document

Same NSN cross-reference

Reference document — Secondary reference

65071HReference document

Same NSN cross-reference

Reference document — Secondary reference

10903Reference document

Same NSN cross-reference

Reference document — Secondary reference

675209Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

30062Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 120557?

120557 is a CUP,TAPERED ROLLER BEARING.

What parts can replace 120557?

There are 9 known substitutes for 120557: 9-049-100895, 72487, 65071H and 6 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 120557?

120557 is cataloged in the U.S. Government catalog under NSN 3110-00-100-0615. This indicates validated use in U.S. government and defense supply chains.

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