PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

4255821Cup,tapered Roller Bearing

Name: 4255821
SKU: 3110-00-498-6989

Agco Corp Parts Opn · NSN 3110-00-498-6989 · FSC 3110 · No Item Name Available

Verified by PartsTable

NSN 3110-00-498-6989 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-498-6989. Primary manufacturer part number: 4255821.

3110-00-498-6989 — No Item Name Available illustration

Features

Cup,tapered Roller Bearing — FSC 3110
Outside Diameter: 2.5625 INCHES NOMINAL IN
Style Designator: NORMAL ANGLE
Material: STEEL OVERALL
Standard Tolerance Designation: AFBMA CLASS 2
Backface Corner Radius: 0.0500 INCHES NOMINAL IN
12 verified cross-references
Primary manufacturer: Agco Corp Parts Opn

Applications

Rotating machinery support and alignment
Shaft load distribution
Precision spindle assemblies
Applications requiring Steel Overall construction

General Description

The Cup,tapered Roller Bearing, cataloged under National Stock Number 3110-00-498-6989, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Agco Corp Parts Opn. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	3110-00-498-6989
Primary Part Number	4255821
Item Name	Cup,tapered Roller Bearing
FSC / FSG	3110 / 31 — No Item Name Available
Manufacturer	Agco Corp Parts Opn
Status	ACTIVE
Outside Diameter	2.5625 INCHES NOMINAL IN
Style Designator	NORMAL ANGLE
Material	STEEL OVERALL
Standard Tolerance Designation	AFBMA CLASS 2
Backface Corner Radius	0.0500 INCHES NOMINAL IN

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 11

5330-00-178-21903653618 INTERCHANGEABLE

Seal,plain Encased

General Motors Llc Dba General Motors Llc

4820-01-007-078718362-1 INTERCHANGEABLE

Retainer,seat,valve

Circor Aerospace, Inc. Dba Circor Aerospace Inc

5325-01-114-409025956 INTERCHANGEABLE

Insert,screw Thread

Jergens Inc Div Tooling Components Division

3040-01-157-7940 INTERCHANGEABLE

Cylinder Assembly,actuating,line

6515-01-184-1235CN 4-289-P INTERCHANGEABLE

Light,head,fiber Optic

Defense Medical Standardization Board

5330-01-463-2885LM29710 INTERCHANGEABLE

Seal,plain

Textron Aviation Inc

6515-01-473-1549259.56 INTERCHANGEABLE

Bolt Locking

Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma

5120-01-604-540625956 INTERCHANGEABLE

Tool Kit,threaded Insert

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc

4330-01-644-844625956 INTERCHANGEABLE

Magnet Assembly,filter

Clemco Industries Corp. Dba Clemco Industries Corp Div Clemco

1560-01-714-59722-5956-6 INTERCHANGEABLE

Web,structural Component,aircraf

The Boeing Company Div Defense

Cross-Reference Index

Part Number	Manufacturer
4255821	Agco Corp Parts Opn (USA)
74255821	Kalmar AC Inc (USA)
M7673F	Lull Corp (USA)
4255821-3	Kalmar AC Inc (USA)
8-32-20-58-040	Safeguard Powertech Systems (USA)
183621	Hyster-Yale Group, Inc. (USA)
AA59649-171B	Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
25956	Gundlach T J Machine Co Div of M J Industries Inc (USA)
183621	Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA)
970003	Southern Steel Co (USA)
AA59649	Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
LM29710	The Timken Corporation (USA)

Related Parts

5330-00-178-2190INTERCHANGEABLE

SEAL,PLAIN ENCASED

3653618

4820-01-007-0787INTERCHANGEABLE

RETAINER,SEAT,VALVE

18362-1

5325-01-114-4090INTERCHANGEABLE

INSERT,SCREW THREAD

25956

3040-01-157-7940INTERCHANGEABLE

CYLINDER ASSEMBLY,ACTUATING,LINE

6515-01-184-1235INTERCHANGEABLE

LIGHT,HEAD,FIBER OPTIC

CN 4-289-P

5330-01-463-2885INTERCHANGEABLE

SEAL,PLAIN

LM29710

6515-01-473-1549INTERCHANGEABLE

BOLT LOCKING

259.56

5120-01-604-5406INTERCHANGEABLE

TOOL KIT,THREADED INSERT

25956

4330-01-644-8446INTERCHANGEABLE

MAGNET ASSEMBLY,FILTER

25956

1560-01-714-5972INTERCHANGEABLE

WEB,STRUCTURAL COMPONENT,AIRCRAF

2-5956-6

1560-01-715-9786INTERCHANGEABLE

WEB,STRUCTURAL COMPONENT,AIRCRAF

2-5956-5

Frequently Asked Questions

What is NSN 3110-00-498-6989?

NSN 3110-00-498-6989 is a Cup,tapered Roller Bearing, manufactured by Agco Corp Parts Opn, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-498-6989?

NSN 3110-00-498-6989 has 12 cross-referenced part numbers: 4255821 (Agco Corp Parts Opn), 74255821 (Kalmar AC Inc), M7673F (Lull Corp), 4255821-3 (Kalmar AC Inc), 8-32-20-58-040 (Safeguard Powertech Systems) and 7 more.

What NSN replaces 3110-00-498-6989?

There are 11 known substitutes for 3110-00-498-6989: 5330-00-178-2190, 4820-01-007-0787, 5325-01-114-4090 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4255821?

Key specifications for 4255821: Overall Width: 0.5500 INCHES NOMINAL IN; Outside Diameter: 2.5625 INCHES NOMINAL IN; Style Designator: NORMAL ANGLE; Material: STEEL OVERALL. 7 total characteristics are documented in the Federal Logistics Information System.

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.

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