PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18490Roller,bearing

Komatsu America Corporation · NSN 3110-00-184-5423 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-184-5423 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-184-5423. Primary manufacturer part number: 18490.
Features
  • Roller,bearing — FSC 3110
  • Overall Outside Diameter: 2.5000 INCHES NOMINAL IN
  • 4 verified cross-references
  • Primary manufacturer: Komatsu America Corporation
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Roller,bearing, cataloged under National Stock Number 3110-00-184-5423, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Komatsu America Corporation. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-184-5423
Primary Part Number18490
Item NameRoller,bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerKomatsu America Corporation
StatusACTIVE
Overall Outside Diameter2.5000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5950-00-824-3604 INTERCHANGEABLE
Coil,radio Frequency
5365-01-294-990318490 INTERCHANGEABLE
Spacer,plate
Williams International Co., L.l.c.
4920-01-296-1478A1846 INTERCHANGEABLE
Fixture Spring Torq
Ametek Inc Div Aerospace and Defense
7690-01-501-264318490 INTERCHANGEABLE
Marker,identification
Brady United States
8455-01-566-1469 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-654-2498 INTERCHANGEABLE
Insignia,shoulder Sleeve
5325-01-668-651118490 INTERCHANGEABLE
Ring,retaining
Consolidated Sewing Machine Corp
1005-01-710-868518490 INTERCHANGEABLE
Rifle,sniper
Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
8455-01-717-0750 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-717-0754 INTERCHANGEABLE
Insignia,shoulder Sleeve
Cross-Reference Index
Part NumberManufacturer
R18490 Komatsu America Corporation (USA)
18490 PRIMARY Komatsu America Corporation (USA)
A1846 Regal Beloit America, Inc. Dba Rollway Bearing (USA)
A1846 PRIMARY Rbc Bearings Incorporated Div West Trenton Division (USA)
Related Parts
5950-00-824-3604INTERCHANGEABLE
COIL,RADIO FREQUENCY
5365-01-294-9903INTERCHANGEABLE
SPACER,PLATE
18490
4920-01-296-1478INTERCHANGEABLE
FIXTURE SPRING TORQ
A1846
7690-01-501-2643INTERCHANGEABLE
MARKER,IDENTIFICATION
18490
8455-01-566-1469INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-654-2498INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
5325-01-668-6511INTERCHANGEABLE
RING,RETAINING
18490
1005-01-710-8685INTERCHANGEABLE
RIFLE,SNIPER
18490
8455-01-717-0750INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-717-0754INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE

Frequently Asked Questions

What is NSN 3110-00-184-5423?

NSN 3110-00-184-5423 is a Roller,bearing, manufactured by Komatsu America Corporation, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-184-5423?

NSN 3110-00-184-5423 has 4 cross-referenced part numbers: R18490 (Komatsu America Corporation), 18490 (Komatsu America Corporation), A1846 (Regal Beloit America, Inc. Dba Rollway Bearing), A1846 (Rbc Bearings Incorporated Div West Trenton Division).

What NSN replaces 3110-00-184-5423?

There are 10 known substitutes for 3110-00-184-5423: 5950-00-824-3604, 5365-01-294-9903, 4920-01-296-1478 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18490?

Key specifications for 18490: Overall Length: 2.0000 INCHES NOMINAL IN; Overall Outside Diameter: 2.5000 INCHES NOMINAL IN; Special Features: ROLLER TYPE: SOLID. 3 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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