PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18858Bearing,washer,thrust

Altra Industrial Motion Corp. · NSN 3120-01-021-1922 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-021-1922 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-021-1922. Primary manufacturer part number: 18858.
Features
  • Bearing,washer,thrust — FSC 3120
  • Style Designator: ROUND
  • Corner Shape: SQUARE ALL CORNERS
  • Surface Condition: GROUND
  • Material: STEEL OVERALL
  • Outside Diameter: 1.3125 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Structural fastening and assembly
  • Equipment mounting
General Description

The Bearing,washer,thrust, cataloged under National Stock Number 3120-01-021-1922, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Altra Industrial Motion Corp.. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-01-021-1922
Primary Part Number18858
Item NameBearing,washer,thrust
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusACTIVE
Style DesignatorROUND
Corner ShapeSQUARE ALL CORNERS
Surface ConditionGROUND
MaterialSTEEL OVERALL
Outside Diameter1.3125 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Overall Thickness0.1825 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN
Diameter0.7500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5950-00-234-6866 INTERCHANGEABLE
Transformer,heli-Coil Adjustment
2590-00-529-8580 INTERCHANGEABLE
Cap,filler Opening
5950-00-646-3127 INTERCHANGEABLE
Transformer,audio Frequency
5305-01-099-635818858 INTERCHANGEABLE
Screw
Hyster-Yale Group, Inc.
5962-01-115-9095932820-235 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Dba Raytheon
5340-01-191-329518858 INTERCHANGEABLE
Cover,access
Moog Inc. Dba Ampac-Isp Corp
4330-01-558-453018858 INTERCHANGEABLE
Filtering Disk,fluid
Sweco Inc
6545-01-572-724880-0149 INTERCHANGEABLE
First Aid Kit,individual
North American Rescue, Llc
5855-01-645-777718858 INTERCHANGEABLE
Pan and Tilt Assembly,thermal Vi
Teledyne Flir Unmanned Ground Systems, Inc
Cross-Reference Index
Part NumberManufacturer
18858 PRIMARY Altra Industrial Motion Corp. (USA)
Related Parts
5950-00-234-6866INTERCHANGEABLE
TRANSFORMER,HELI-COIL ADJUSTMENT
2590-00-529-8580INTERCHANGEABLE
CAP,FILLER OPENING
5950-00-646-3127INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5305-01-099-6358INTERCHANGEABLE
SCREW
18858
5962-01-115-9095INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
932820-235
5340-01-191-3295INTERCHANGEABLE
COVER,ACCESS
18858
4330-01-558-4530INTERCHANGEABLE
FILTERING DISK,FLUID
18858
6545-01-572-7248INTERCHANGEABLE
FIRST AID KIT,INDIVIDUAL
80-0149
5855-01-645-7777INTERCHANGEABLE
PAN AND TILT ASSEMBLY,THERMAL VI
18858

Frequently Asked Questions

What is NSN 3120-01-021-1922?

NSN 3120-01-021-1922 is a Bearing,washer,thrust, manufactured by Altra Industrial Motion Corp., classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-01-021-1922?

NSN 3120-01-021-1922 has 1 cross-referenced part number: 18858 (Altra Industrial Motion Corp.).

What NSN replaces 3120-01-021-1922?

There are 9 known substitutes for 3120-01-021-1922: 5950-00-234-6866, 2590-00-529-8580, 5950-00-646-3127 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18858?

Key specifications for 18858: Style Designator: ROUND; Corner Shape: SQUARE ALL CORNERS; Surface Condition: GROUND; Material: STEEL OVERALL. 9 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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