PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18868Bearing,washer,thrust

Altra Industrial Motion Corp. · NSN 3120-01-155-4471 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-155-4471 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-155-4471. Primary manufacturer part number: 18868.
Features
  • Bearing,washer,thrust — FSC 3120
  • Cross-Sectional Shape Style: RECTANGULAR
  • Style Designator: ROUND
  • Overall Thickness: 0.0888 INCHES MINIMUM AND 0.0938 INCHES MAXIMUM IN
  • Surface Condition: GROUND
  • Center Hole Shape Style: ROUND
  • Outside Diameter: 1.1575 INCHES MINIMUM AND 1.2175 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
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 3120-01-155-4471, 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-01-155-4471
Primary Part Number18868
Item NameBearing,washer,thrust
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusACTIVE
Cross-Sectional Shape StyleRECTANGULAR
Style DesignatorROUND
Overall Thickness0.0888 INCHES MINIMUM AND 0.0938 INCHES MAXIMUM IN
Surface ConditionGROUND
Center Hole Shape StyleROUND
Outside Diameter1.1575 INCHES MINIMUM AND 1.2175 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Corner ShapeSQUARE ALL CORNERS
Diameter0.8650 INCHES MINIMUM AND 0.8850 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4730-00-245-7553 INTERCHANGEABLE
Tee,pipe
4810-00-994-4187 INTERCHANGEABLE
Parts Kit,pressure Regulating VA
5970-01-095-198118868 INTERCHANGEABLE
Insulator,bushing
Kurz & Root Generator Company, Llc
5930-01-253-612618868 INTERCHANGEABLE
Switch,rotary
G.s. Blodgett, Llc Div Blodgett
5930-01-337-903516025 INTERCHANGEABLE
Switch,rotary
G.s. Blodgett, Llc Div Blodgett
4920-01-439-415418869 INTERCHANGEABLE
Case,test Set
James Electronics Ltd Dba Jameco Electronics Div Jameco Electronics
Cross-Reference Index
Part NumberManufacturer
18868 PRIMARY Altra Industrial Motion Corp. (USA)
Related Parts
4730-00-245-7553INTERCHANGEABLE
TEE,PIPE
4810-00-994-4187INTERCHANGEABLE
PARTS KIT,PRESSURE REGULATING VA
5970-01-095-1981INTERCHANGEABLE
INSULATOR,BUSHING
18868
5930-01-253-6126INTERCHANGEABLE
SWITCH,ROTARY
18868
5930-01-337-9035INTERCHANGEABLE
SWITCH,ROTARY
16025
4920-01-439-4154INTERCHANGEABLE
CASE,TEST SET
18869

Frequently Asked Questions

What is NSN 3120-01-155-4471?

NSN 3120-01-155-4471 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 3120-01-155-4471?

NSN 3120-01-155-4471 has 1 cross-referenced part number: 18868 (Altra Industrial Motion Corp.).

What NSN replaces 3120-01-155-4471?

There are 6 known substitutes for 3120-01-155-4471: 4730-00-245-7553, 4810-00-994-4187, 5970-01-095-1981 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18868?

Key specifications for 18868: Cross-Sectional Shape Style: RECTANGULAR; Style Designator: ROUND; Overall Thickness: 0.0888 INCHES MINIMUM AND 0.0938 INCHES MAXIMUM IN; Surface Condition: GROUND. 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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