PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21801Bushing,sleeve

Regal-Beloit Corporation Dba Fasco Group Div Cassville Division · NSN 3120-00-182-8490 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-182-8490 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-182-8490. Primary manufacturer part number: 21801.
Features
  • Bushing,sleeve — FSC 3120
  • Corner Shape: SQUARE ALL CORNERS
  • Surface Treatment: CADMIUM OVERALL
  • Body Inside Diameter: 1.3750 INCHES NOMINAL IN
  • Body Outside Diameter: 1.6795 INCHES MINIMUM AND 1.6800 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Surface Finish: 125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
Applications
  • Applications requiring Steel Overall construction
General Description

The Bushing,sleeve, cataloged under National Stock Number 3120-00-182-8490, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Regal-Beloit Corporation Dba Fasco Group Div Cassville Division. Government technical data includes 7 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
NSN3120-00-182-8490
Primary Part Number21801
Item NameBushing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerRegal-Beloit Corporation Dba Fasco Group Div Cassville Division
StatusACTIVE
Corner ShapeSQUARE ALL CORNERS
Surface TreatmentCADMIUM OVERALL
Body Inside Diameter1.3750 INCHES NOMINAL IN
Body Outside Diameter1.6795 INCHES MINIMUM AND 1.6800 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Surface Finish125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5120-00-293-001021801 INTERCHANGEABLE
Clamp,screw,quick Adjusting
Wilton Corp Wilton Tool Div
4820-00-407-64492180-1 INTERCHANGEABLE
Valve,ball
Crane Co Div Valve Div
5955-00-581-8762TC014G INTERCHANGEABLE
Oven,electrical-Electronic Compo
Bliley Technologies Inc
5950-00-760-9323240-0887-060 INTERCHANGEABLE
Coil,radio Frequency
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5962-01-170-2333DM54LS221J INTERCHANGEABLE
Microcircuit,digital
National Semiconductor Corporation
5360-01-308-242321801 INTERCHANGEABLE
Spring
Elbitamerica, Inc.
5360-01-315-7271 INTERCHANGEABLE
Spring,helical,compression
5306-01-614-359621801 INTERCHANGEABLE
Bolt,machine
Fastenal Company Dba Fastenal Co Div Ilmon
5331-01-685-906121801 INTERCHANGEABLE
O-Ring
Inter-Coastal Electronics, Llc
Cross-Reference Index
Part NumberManufacturer
21801 PRIMARY Regal-Beloit Corporation Dba Fasco Group Div Cassville Division (USA)
Related Parts
5120-00-293-0010INTERCHANGEABLE
CLAMP,SCREW,QUICK ADJUSTING
21801
4820-00-407-6449INTERCHANGEABLE
VALVE,BALL
2180-1
5955-00-581-8762INTERCHANGEABLE
OVEN,ELECTRICAL-ELECTRONIC COMPO
TC014G
5950-00-760-9323INTERCHANGEABLE
COIL,RADIO FREQUENCY
240-0887-060
5962-01-170-2333INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
DM54LS221J
5360-01-308-2423INTERCHANGEABLE
SPRING
21801
5360-01-315-7271INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5306-01-614-3596INTERCHANGEABLE
BOLT,MACHINE
21801
5331-01-685-9061INTERCHANGEABLE
O-RING
21801

Frequently Asked Questions

What is NSN 3120-00-182-8490?

NSN 3120-00-182-8490 is a Bushing,sleeve, manufactured by Regal-Beloit Corporation Dba Fasco Group Div Cassville Division, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-182-8490?

NSN 3120-00-182-8490 has 1 cross-referenced part number: 21801 (Regal-Beloit Corporation Dba Fasco Group Div Cassville Division).

What NSN replaces 3120-00-182-8490?

There are 9 known substitutes for 3120-00-182-8490: 5120-00-293-0010, 4820-00-407-6449, 5955-00-581-8762 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21801?

Key specifications for 21801: Corner Shape: SQUARE ALL CORNERS; Surface Treatment: CADMIUM OVERALL; Body Inside Diameter: 1.3750 INCHES NOMINAL IN; Body Outside Diameter: 1.6795 INCHES MINIMUM AND 1.6800 INCHES MAXIMUM IN. 8 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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