PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18828Bearing,washer,thrust

Altra Industrial Motion Corp. · NSN 3120-00-423-7933 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-423-7933 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-423-7933. Primary manufacturer part number: 18828.
Features
  • Bearing,washer,thrust — FSC 3120
  • Center Hole Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Outside Diameter: 1.1094 INCHES MINIMUM AND 1.1406 INCHES MAXIMUM IN
  • Corner Shape: SQUARE ALL CORNERS
  • Surface Treatment: PASSIVATE OVERALL
  • Material: STEEL COMP 303 OVERALL
  • Surface Condition: GROUND
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 3120-00-423-7933, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, 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
NSN3120-00-423-7933
Primary Part Number18828
Item NameBearing,washer,thrust
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusACTIVE
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Outside Diameter1.1094 INCHES MINIMUM AND 1.1406 INCHES MAXIMUM IN
Corner ShapeSQUARE ALL CORNERS
Surface TreatmentPASSIVATE OVERALL
MaterialSTEEL COMP 303 OVERALL
Surface ConditionGROUND
Style DesignatorROUND
Diameter0.5000 INCHES MINIMUM AND 0.5020 INCHES MAXIMUM IN
Overall Thickness0.0575 INCHES MINIMUM AND 0.0625 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5365-00-073-733818828 INTERCHANGEABLE
Plug,machine Thread
Ametek, Inc. Dba Aerospace Gst Div Aerospace
5330-01-117-241318817 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5306-01-156-486518828-1 INTERCHANGEABLE
Bolt,torque Arm Apex
Northrop Grumman Systems Corporation
2530-01-270-041918828 INTERCHANGEABLE
Arm,steering Gear
Trw Inc Trw Intl Trade Government Sales Dept
2530-01-270-256214067700 INTERCHANGEABLE
Arm,steering Gear
General Motors Llc Dba General Motors Llc
4820-01-303-1149K-KHV28L/NW25 INTERCHANGEABLE
Valve,ball
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
2920-01-326-91451-18828 INTERCHANGEABLE
Drive,engine,electrical Starter
Ge Aviation Systems, Llc
2530-01-439-4570F4741-007 INTERCHANGEABLE
Boot,vehicular Components
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5950-01-501-238718828 INTERCHANGEABLE
Transformer,current
Robert M. Hadley Company, Inc.
Cross-Reference Index
Part NumberManufacturer
1163535 Itt Industries Inc Itt Aerospace Communications Div East (USA)
18828 PRIMARY Altra Industrial Motion Corp. (USA)
1163535 L3harris Technologies, Inc. Dba Harris Corporation (USA)
Related Parts
5365-00-073-7338INTERCHANGEABLE
PLUG,MACHINE THREAD
18828
5330-01-117-2413INTERCHANGEABLE
SEAL,PLAIN ENCASED
18817
5306-01-156-4865INTERCHANGEABLE
BOLT,TORQUE ARM APEX
18828-1
2530-01-270-0419INTERCHANGEABLE
ARM,STEERING GEAR
18828
2530-01-270-2562INTERCHANGEABLE
ARM,STEERING GEAR
14067700
4820-01-303-1149INTERCHANGEABLE
VALVE,BALL
K-KHV28L/NW25
2920-01-326-9145INTERCHANGEABLE
DRIVE,ENGINE,ELECTRICAL STARTER
1-18828
2530-01-439-4570INTERCHANGEABLE
BOOT,VEHICULAR COMPONENTS
F4741-007
5950-01-501-2387INTERCHANGEABLE
TRANSFORMER,CURRENT
18828

Frequently Asked Questions

What is NSN 3120-00-423-7933?

NSN 3120-00-423-7933 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 3120-00-423-7933?

NSN 3120-00-423-7933 has 3 cross-referenced part numbers: 1163535 (Itt Industries Inc Itt Aerospace Communications Div East), 18828 (Altra Industrial Motion Corp.), 1163535 (L3harris Technologies, Inc. Dba Harris Corporation).

What NSN replaces 3120-00-423-7933?

There are 9 known substitutes for 3120-00-423-7933: 5365-00-073-7338, 5330-01-117-2413, 5306-01-156-4865 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18828?

Key specifications for 18828: Center Hole Shape Style: ROUND; Cross-Sectional Shape Style: RECTANGULAR; Outside Diameter: 1.1094 INCHES MINIMUM AND 1.1406 INCHES MAXIMUM IN; Corner Shape: SQUARE ALL CORNERS. 10 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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