K-4-7-8 — CONE AND ROLLERS,TAPERED ROLLER

✓ Government record, cited

— · TAPERED BEARING

PRODUCT OVERVIEW

K-4-7-8: CONE AND ROLLERS,TAPERED ROLLER.

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include material: STEEL OVERALL, cone_width: 1.1420 INCHES NOMINAL IN, bore_diameter: 2.5591 INCHES NOMINAL IN, style_designator: NORMAL ANGLE, cone_corner_radius: 0.0938 INCHES NOMINAL IN, end_item_identification: K515 KS PUMP. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-0255, 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

K-4-7-8

NSN: 3110-00-100-0255
NIINs: 001000255, 013507344, 016869573, 016969679
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: F0272 — SKF FRANCE (FRA)

SPECIFICATIONS

material	STEEL OVERALL
cone_width	1.1420 INCHES NOMINAL IN
bore_diameter	2.5591 INCHES NOMINAL IN
style_designator	NORMAL ANGLE
cone_corner_radius	0.0938 INCHES NOMINAL IN
end_item_identification	K515 KS PUMP
standard_tolerance_designation	AFBMA CLASS 2
part_name_assigned_by_controlling_agency	OIL-LESS SERVICE KIT
NSN	3110-00-100-0255

COMPONENT DIAGRAM

KEY FEATURES

•

STYLE DESIGNATOR: NORMAL ANGLE

•

CONE CORNER RADIUS: 0.0938 INCHES NOMINAL IN

•

CONE WIDTH: 1.1420 INCHES NOMINAL IN

•

STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2

•

BORE DIAMETER: 2.5591 INCHES NOMINAL IN

•

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
CONE CORNER RADIUS	0.0938 INCHES NOMINAL IN
CONE WIDTH	1.1420 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATION	AFBMA CLASS 2
BORE DIAMETER	2.5591 INCHES NOMINAL IN
MATERIAL	STEEL OVERALL

SUBSTITUTES & CROSS-REFERENCES 5

FF-B-187AReference document

Same NSN cross-reference

Reference document — Identification reference

478Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

5T1223Reference document

Same NSN cross-reference

Reference document — Secondary reference

121550Reference document

Same NSN cross-reference

Reference document — Secondary reference

5R1223Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is K-4-7-8?

K-4-7-8 is a CONE AND ROLLERS,TAPERED ROLLER.

What parts can replace K-4-7-8?

There are 5 known substitutes for K-4-7-8: FF-B-187A, 478, 5T1223 and 2 more. Substitute compatibility should be verified for your specific system.

What is the NSN for K-4-7-8?

K-4-7-8 is cataloged in the U.S. Government catalog under NSN 3110-00-100-0255. This indicates validated use in U.S. government and defense supply chains.

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