PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18870Bearing,washer,thrust

Altra Industrial Motion Corp. · NSN 3120-01-084-1485 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-084-1485 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-084-1485. Primary manufacturer part number: 18870.
Features
  • Bearing,washer,thrust — FSC 3120
  • Material: STEEL OVERALL
  • Outside Diameter: 2.0000 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Style Designator: ROUND
  • Surface Condition: GROUND
  • Corner Shape: SQUARE ALL CORNERS
  • Diameter: 0.8750 INCHES NOMINAL IN
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 3120-01-084-1485, 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-01-084-1485
Primary Part Number18870
Item NameBearing,washer,thrust
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusACTIVE
MaterialSTEEL OVERALL
Outside Diameter2.0000 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Style DesignatorROUND
Surface ConditionGROUND
Corner ShapeSQUARE ALL CORNERS
Diameter0.8750 INCHES NOMINAL IN
Overall Thickness0.1250 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4820-00-032-924718870 INTERCHANGEABLE
Valve,regulating,temperature
Honeywell International Inc. Div Aerospace - Torrance
5998-00-113-9989 INTERCHANGEABLE
Circuit Card Assembly
5330-00-213-164079455 INTERCHANGEABLE
Gasket Set
Leroi International Inc Dba Compair Leroi
5340-00-359-0859 INTERCHANGEABLE
Clip,spring Tension
4820-00-585-75713564-2000 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division
4820-01-144-8244650900 INTERCHANGEABLE
Cartridge,valve
Time Manufacturing Company Dba Time Manufacturing Company
4820-01-517-5527 INTERCHANGEABLE
Valve,safety Relief
Cross-Reference Index
Part NumberManufacturer
18870 PRIMARY Altra Industrial Motion Corp. (USA)
Related Parts
4820-00-032-9247INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
18870
5998-00-113-9989INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5330-00-213-1640INTERCHANGEABLE
GASKET SET
79455
5340-00-359-0859INTERCHANGEABLE
CLIP,SPRING TENSION
4820-00-585-7571INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
3564-2000
4820-01-144-8244INTERCHANGEABLE
CARTRIDGE,VALVE
650900
4820-01-517-5527INTERCHANGEABLE
VALVE,SAFETY RELIEF

Frequently Asked Questions

What is NSN 3120-01-084-1485?

NSN 3120-01-084-1485 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 3120-01-084-1485?

NSN 3120-01-084-1485 has 1 cross-referenced part number: 18870 (Altra Industrial Motion Corp.).

What NSN replaces 3120-01-084-1485?

There are 7 known substitutes for 3120-01-084-1485: 4820-00-032-9247, 5998-00-113-9989, 5330-00-213-1640 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18870?

Key specifications for 18870: Material: STEEL OVERALL; Outside Diameter: 2.0000 INCHES NOMINAL IN; Center Hole Shape Style: ROUND; Style Designator: ROUND. 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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