PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18458Bearing Support

Komatsu America Corporation · NSN 2520-00-163-2446 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-163-2446 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-163-2446. Primary manufacturer part number: 18458.
Features
  • Bearing Support — FSC 2520
  • 2 verified cross-references
  • Primary manufacturer: Komatsu America Corporation
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing Support, cataloged under National Stock Number 2520-00-163-2446, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Komatsu America Corporation. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameBearing Support
FSC / FSG2520 — No Item Name Available (FSG 25)
ManufacturersKomatsu America Corporation (CAGE 23926)
Technical Specifications
ParameterValue
NSN2520-00-163-2446
Primary Part Number18458
Item NameBearing Support
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerKomatsu America Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5920-00-280-8342 INTERCHANGEABLE
Fuse,cartridge
5305-00-352-068818458 INTERCHANGEABLE
Screw,externally Relieved Body
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
2510-00-628-9278910144 INTERCHANGEABLE
Shock Absorber,direct Action
Am General Llc
2520-00-703-26321858 INTERCHANGEABLE
Case,differential
Dana Corp Spicer Transmission Div
4310-01-061-328218-458C-I INTERCHANGEABLE
Ring,piston
Rix Industries
5995-01-516-9551 INTERCHANGEABLE
Wiring Harness
Cross-Reference Index
Part NumberManufacturer
18458 PRIMARY Komatsu America Corporation (USA)
R18458 Komatsu America Corporation (USA)
Related Parts
5920-00-280-8342INTERCHANGEABLE
FUSE,CARTRIDGE
5305-00-352-0688INTERCHANGEABLE
SCREW,EXTERNALLY RELIEVED BODY
18458
2510-00-628-9278INTERCHANGEABLE
SHOCK ABSORBER,DIRECT ACTION
910144
2520-00-703-2632INTERCHANGEABLE
CASE,DIFFERENTIAL
1858
4310-01-061-3282INTERCHANGEABLE
RING,PISTON
18-458C-I
5995-01-516-9551INTERCHANGEABLE
WIRING HARNESS

Frequently Asked Questions

What is NSN 2520-00-163-2446?

NSN 2520-00-163-2446 is a Bearing Support, manufactured by Komatsu America Corporation, classified under FSC 2520 (No Item Name Available). Status: active.

What are the part numbers for NSN 2520-00-163-2446?

NSN 2520-00-163-2446 has 2 cross-referenced part numbers: 18458 (Komatsu America Corporation), R18458 (Komatsu America Corporation).

What NSN replaces 2520-00-163-2446?

There are 6 known substitutes for 2520-00-163-2446: 5920-00-280-8342, 5305-00-352-0688, 2510-00-628-9278 and 3 more. Verify interchangeability with system specifications before substitution.

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